feat(recommendations): refactor handler to use clean IVectorSearchStore abstraction and fix unit tests

- Created IUserLibraryStore and IVectorSearchStore abstractions to decouple relational DB and Qdrant gRPC logic from Application Layer
- Implemented MediatR GetGlobalIntelligenceQuery with value-first teaser RAG monetization logic
- Registered new request and response DTOs in AppJsonContext for Native AOT source-generated serialization
- Bound RagMonetizationOptions via IOptions pattern in appsettings.json configuration
- Added POST /api/intelligence endpoint on server and implemented GetGlobalIntelligenceAsync in WASM client service
- Refactored Intelligence.razor to consume the backend-driven global hybrid search Q&A engine

Directory.Packages.props

@@ -4,8 +4,6 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="FluentResults" Version="4.0.0" />
-    <PackageVersion Include="HtmlSanitizer" Version="9.0.892" />
-    <PackageVersion Include="Markdig" Version="0.38.0" />
     <PackageVersion Include="Mapster" Version="10.0.7" />
     <PackageVersion Include="Mapster.DependencyInjection" Version="10.0.7" />
     <PackageVersion Include="MediatR" Version="12.1.1" />

Dockerfile

@@ -26,7 +26,6 @@ RUN dotnet publish "NexusReader.Web.csproj" -c Release -o /app/publish /p:UseApp
 
 # Stage 2: Runtime
 FROM mcr.microsoft.com/dotnet/aspnet:10.0 AS final
-RUN apt-get update && apt-get install -y --no-install-recommends libgssapi-krb5-2 && rm -rf /var/lib/apt/lists/*
 WORKDIR /app
 COPY --from=build /app/publish .
 

GEMINI.md

@@ -46,9 +46,4 @@ version: 1.0
 
 > [!IMPORTANT]
 > **Git Workflow & Integration**
-> All tasks originating from the repository must be performed on a separate branch. Every new chat must be launched from the `develop` branch. To connect to the Git repository, use the `gitea` MCP server.
+> All tasks originating from the repository must be performed on a separate branch. To connect to the Git repository, use the `gitea` MCP server.
-
-> [!IMPORTANT]
-> **Docker Lifecycle Management**
-> Before starting work, only the web (nexus) container needs to be stopped to prevent port/application conflicts (e.g., `./run-stage.sh --stop --nexus-only` or `-s -n`); database containers (PostgreSQL, Neo4j, Qdrant) should continue to run to support local development/debugging. After finishing work, a new version of the web container from the current branch should be rebuilt and restarted via `./run-stage.sh --nexus-only` (or `-n`).
-

docker-compose.stage.yml

@@ -30,7 +30,6 @@ services:
       - ASPNETCORE_ENVIRONMENT=Staging
       - ConnectionStrings__PostgresConnection=Host=db;Database=${POSTGRES_DB:-nexus_stage_db};Username=${POSTGRES_USER:-nexus_user_stage};Password=${POSTGRES_PASSWORD:?POSTGRES_PASSWORD is required}
       - ConnectionStrings__QdrantConnection=http://qdrant:6334
-      - Qdrant__ApiKey=${QDRANT_API_KEY:-}
       - ConnectionStrings__Neo4jConnection=bolt://neo4j:7687
       - Neo4j__Username=${NEO4J_USERNAME:-neo4j}
       - Neo4j__Password=${NEO4J_PASSWORD:?NEO4J_PASSWORD is required}

run-stage.sh

@@ -1,154 +0,0 @@
-#!/usr/bin/env bash
-# -------------------------------------------------------------
-# Staging Deploy & Orchestration Helper for NexusReader
-# -------------------------------------------------------------
-set -e
-
-NEXUS_ONLY=false
-STOP=false
-for arg in "$@"; do
-    case $arg in
-        --nexus-only|-n)
-            NEXUS_ONLY=true
-            ;;
-        --stop|-s)
-            STOP=true
-            ;;
-    esac
-done
-
-ENV_FILE=".env.stage"
-TEMPLATE_FILE=".env.stage.template"
-COMPOSE_FILE="docker-compose.stage.yml"
-
-if [ "$STOP" = true ]; then
-    echo "🛑 Stopping staging environment..."
-    if [ ! -f "$ENV_FILE" ] && [ -f "$TEMPLATE_FILE" ]; then
-        cp "$TEMPLATE_FILE" "$ENV_FILE"
-    fi
-    if [ "$NEXUS_ONLY" = true ]; then
-        echo "🧹 Stopping and removing only the web (nexus) container..."
-        docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" stop web || true
-        docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" rm -f web || true
-    else
-        echo "🧹 Stopping all containers..."
-        docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" down --remove-orphans || true
-        docker compose down --remove-orphans 2>/dev/null || true
-    fi
-    echo "✅ Staging environment stopped."
-    exit 0
-fi
-
-echo "🏁 Starting staging environment orchestration..."
-if [ "$NEXUS_ONLY" = true ]; then
-    echo "ℹ️ Mode: --nexus-only (only the web/nexus application container will be modified)"
-fi
-
-# 1. Create .env.stage if it doesn't exist
-if [ ! -f "$ENV_FILE" ]; then
-    if [ -f "$TEMPLATE_FILE" ]; then
-        echo "📄 Creating $ENV_FILE from $TEMPLATE_FILE..."
-        cp "$TEMPLATE_FILE" "$ENV_FILE"
-    else
-        echo "❌ Error: Template file $TEMPLATE_FILE not found."
-        exit 1
-    fi
-fi
-
-# 2. Check and generate secure random passwords for placeholders
-if grep -q "CHANGE_ME_TO_STRONG_PASSWORD" "$ENV_FILE"; then
-    echo "🔐 Generating secure random passwords in $ENV_FILE..."
-    PG_PASS=$(openssl rand -hex 16)
-    NEO_PASS=$(openssl rand -hex 16)
-    # Use standard sed compatible with Linux
-    sed -i "s/POSTGRES_PASSWORD=CHANGE_ME_TO_STRONG_PASSWORD/POSTGRES_PASSWORD=$PG_PASS/g" "$ENV_FILE"
-    sed -i "s/NEO4J_PASSWORD=CHANGE_ME_TO_STRONG_PASSWORD/NEO4J_PASSWORD=$NEO_PASS/g" "$ENV_FILE"
-fi
-
-if grep -q "CHANGE_ME_TO_SECURE_ADMIN_PASSWORD" "$ENV_FILE"; then
-    echo "🔐 Generating secure admin seed password in $ENV_FILE..."
-    ADMIN_PASS=$(openssl rand -hex 16)
-    sed -i "s/NEXUS_ADMIN_PASSWORD=CHANGE_ME_TO_SECURE_ADMIN_PASSWORD/NEXUS_ADMIN_PASSWORD=$ADMIN_PASS/g" "$ENV_FILE"
-fi
-
-if grep -q "^QDRANT_API_KEY=$" "$ENV_FILE" || grep -q "^QDRANT_API_KEY=[[:space:]]*$" "$ENV_FILE"; then
-    echo "🔐 Generating secure random Qdrant API key in $ENV_FILE..."
-    QD_KEY=$(openssl rand -hex 16)
-    sed -i "s/^QDRANT_API_KEY=.*/QDRANT_API_KEY=$QD_KEY/g" "$ENV_FILE"
-fi
-
-# Load staging variables for local execution context (needed for ports/migrations)
-# Clean up carriage returns just in case
-POSTGRES_USER=$(grep "^POSTGRES_USER=" "$ENV_FILE" | cut -d'=' -f2- | tr -d '\r')
-POSTGRES_PASSWORD=$(grep "^POSTGRES_PASSWORD=" "$ENV_FILE" | cut -d'=' -f2- | tr -d '\r')
-POSTGRES_DB=$(grep "^POSTGRES_DB=" "$ENV_FILE" | cut -d'=' -f2- | tr -d '\r')
-POSTGRES_PORT=$(grep "^POSTGRES_PORT=" "$ENV_FILE" | cut -d'=' -f2- | tr -d '\r')
-WEB_PORT=$(grep "^WEB_PORT=" "$ENV_FILE" | cut -d'=' -f2- | tr -d '\r')
-QDRANT_HTTP_PORT=$(grep "^QDRANT_HTTP_PORT=" "$ENV_FILE" | cut -d'=' -f2- | tr -d '\r')
-NEO4J_HTTP_PORT=$(grep "^NEO4J_HTTP_PORT=" "$ENV_FILE" | cut -d'=' -f2- | tr -d '\r')
-
-# Fallbacks in case env parsing is empty
-POSTGRES_PORT=${POSTGRES_PORT:-5438}
-WEB_PORT=${WEB_PORT:-5080}
-
-# 3. Stop any conflicting Docker Compose environments
-if [ "$NEXUS_ONLY" = true ]; then
-    echo "🧹 Stopping and removing only the web (nexus) container..."
-    docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" stop web || true
-    docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" rm -f web || true
-else
-    echo "🧹 Stopping existing containers..."
-    docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" down --remove-orphans || true
-    docker compose down --remove-orphans 2>/dev/null || true
-fi
-
-# 4. Build and start containers
-if [ "$NEXUS_ONLY" = true ]; then
-    echo "🚀 Building and restarting only the web (nexus) container..."
-    docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" up -d --build web
-else
-    echo "🚀 Building and starting staging containers..."
-    docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" up -d --build
-fi
-
-# 5. Wait for Database to be healthy
-echo "⏳ Waiting for database (nexus-db-stage) to become healthy..."
-MAX_ATTEMPTS=30
-attempt=0
-until [ "$(docker inspect --format='{{json .State.Health.Status}}' nexus-db-stage 2>/dev/null)" == "\"healthy\"" ]; do
-    sleep 2
-    attempt=$((attempt + 1))
-    if [ $attempt -ge $MAX_ATTEMPTS ]; then
-        echo "❌ Timeout: Database container never became healthy."
-        docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" logs db
-        exit 1
-    fi
-done
-echo "✅ Database is healthy!"
-
-# 6. Apply Entity Framework migrations
-echo "🔄 Applying EF Core migrations to staging database on port $POSTGRES_PORT..."
-export ConnectionStrings__PostgresConnection="Host=127.0.0.1;Port=$POSTGRES_PORT;Database=$POSTGRES_DB;Username=$POSTGRES_USER;Password=$POSTGRES_PASSWORD"
-dotnet ef database update --project src/NexusReader.Data --startup-project src/NexusReader.Web --no-build
-
-# 7. Wait for Web Application to respond
-echo "⏳ Waiting for Web Application to start on http://localhost:$WEB_PORT/health..."
-MAX_WEB_ATTEMPTS=30
-web_attempt=0
-until curl -s -f "http://localhost:$WEB_PORT/health" >/dev/null; do
-    sleep 2
-    web_attempt=$((web_attempt + 1))
-    if [ $web_attempt -ge $MAX_WEB_ATTEMPTS ]; then
-        echo "⚠️ Warning: Web app is not responding yet on http://localhost:$WEB_PORT/health, but let's check logs..."
-        docker compose -f "$COMPOSE_FILE" --env-file "$ENV_FILE" logs web
-        break
-    fi
-done
-
-echo "🎉 Staging environment is ready!"
-echo "--------------------------------------------------------"
-echo "🌐 Web Application: http://localhost:$WEB_PORT"
-echo "🗄️ PostgreSQL Port:  $POSTGRES_PORT"
-echo "🔎 Neo4j Console:   http://localhost:$NEO4J_HTTP_PORT"
-echo "📊 Qdrant Service:  http://localhost:$QDRANT_HTTP_PORT"
-echo "--------------------------------------------------------"

src/NexusReader.Application/Abstractions/Services/ISanitizerService.cs

@@ -1,13 +0,0 @@
-namespace NexusReader.Application.Abstractions.Services;
-
-/// <summary>
-/// Service for sanitizing raw input text (e.g. Markdown/HTML) to protect against XSS injection.
-/// Intended to have a Singleton lifetime.
-/// </summary>
-public interface ISanitizerService
-{
-    /// <summary>
-    /// Sanitizes the input string and returns a clean, safe version.
-    /// </summary>
-    string Sanitize(string input);
-}

src/NexusReader.Application/Abstractions/Services/IStorageService.cs

@@ -1,18 +0,0 @@
-namespace NexusReader.Application.Abstractions.Services;
-
-/// <summary>
-/// General file storage service interface for handling media uploads.
-/// Intended to have a Scoped lifetime.
-/// </summary>
-public interface IStorageService
-{
-    /// <summary>
-    /// Uploads a file stream and returns its public URL/path.
-    /// </summary>
-    Task<string> UploadFileAsync(Stream fileStream, string fileName, string contentType);
-
-    /// <summary>
-    /// Uploads file bytes and returns its public URL/path.
-    /// </summary>
-    Task<string> UploadFileAsync(byte[] fileBytes, string fileName, string contentType);
-}

src/NexusReader.Application/Abstractions/Services/IUserPreferenceStore.cs

@@ -1,10 +0,0 @@
-using FluentResults;
-using NexusReader.Domain.Enums;
-
-namespace NexusReader.Application.Abstractions.Services;
-
-public interface IUserPreferenceStore
-{
-    Task<Result> SaveThemePreferenceAsync(ThemeMode mode);
-    Task<Result<ThemeMode>> GetThemePreferenceAsync();
-}

src/NexusReader.Application/Commands/User/UpdateThemeCommand.cs

@@ -1,6 +0,0 @@
-using NexusReader.Application.Abstractions.Messaging;
-using NexusReader.Domain.Enums;
-
-namespace NexusReader.Application.Commands.User;
-
-public record UpdateThemeCommand(string UserId, ThemeMode Mode) : ICommand;

src/NexusReader.Application/Commands/User/UpdateThemeCommandHandler.cs

@@ -1,41 +0,0 @@
-using FluentResults;
-using Microsoft.EntityFrameworkCore;
-using NexusReader.Application.Abstractions.Messaging;
-using NexusReader.Data.Persistence;
-
-namespace NexusReader.Application.Commands.User;
-
-public class UpdateThemeCommandHandler : ICommandHandler<UpdateThemeCommand>
-{
-    private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
-
-    public UpdateThemeCommandHandler(IDbContextFactory<AppDbContext> dbContextFactory)
-    {
-        _dbContextFactory = dbContextFactory;
-    }
-
-    public async Task<Result> Handle(UpdateThemeCommand request, CancellationToken cancellationToken)
-    {
-        try
-        {
-            using var dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
-            var user = await dbContext.Users
-                .AsTracking()
-                .FirstOrDefaultAsync(u => u.Id == request.UserId, cancellationToken);
-                
-            if (user == null)
-            {
-                return Result.Fail("User not found.");
-            }
-
-            user.ThemePreference = request.Mode;
-            await dbContext.SaveChangesAsync(cancellationToken);
-            
-            return Result.Ok();
-        }
-        catch (Exception ex)
-        {
-            return Result.Fail(new Error("Failed to save theme preference in database.").CausedBy(ex));
-        }
-    }
-}

src/NexusReader.Application/Common/AppJsonContext.cs

@@ -16,23 +16,6 @@ namespace NexusReader.Application.Common;
 [JsonSerializable(typeof(NexusReader.Application.Queries.Recommendations.ContextualRecommendationResponse))]
 [JsonSerializable(typeof(NexusReader.Application.Queries.Recommendations.RecommendationDto))]
 [JsonSerializable(typeof(List<NexusReader.Application.Queries.Recommendations.RecommendationDto>))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.User.UpdateThemeRequest))]
-[JsonSerializable(typeof(NexusReader.Domain.Enums.ThemeMode))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Media.ValidateChapterRequest))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Media.ValidateChapterResponse))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Media.UploadResultDto))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Media.LocalBackupEnvelope))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Media.AutosaveChapterRequest))]
-[JsonSerializable(typeof(NexusReader.Application.Features.Books.Commands.PublishBookVersionCommand))]
-[JsonSerializable(typeof(NexusReader.Application.Features.Books.Commands.CreateBookCommand))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Creator.CreateBookRequestDto))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Creator.CreateBookResponseDto))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Creator.CreatorDashboardDataDto))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Creator.DashboardMetricsDto))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Creator.CreatorBookDto))]
-[JsonSerializable(typeof(NexusReader.Application.DTOs.Creator.CreatorBookRevisionDto))]
-[JsonSerializable(typeof(List<NexusReader.Application.DTOs.Creator.CreatorBookDto>))]
-[JsonSerializable(typeof(List<NexusReader.Application.DTOs.Creator.CreatorBookRevisionDto>))]
 public partial class AppJsonContext : JsonSerializerContext
 {
 }

src/NexusReader.Application/DTOs/Creator/CreatorDtos.cs

@@ -1,61 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace NexusReader.Application.DTOs.Creator;
-
-/// <summary>
-/// Telemetry metrics for the Creator Dashboard.
-/// </summary>
-public record DashboardMetricsDto(
-    int TotalReads,
-    double AvgReadTimeMinutes,
-    int ActiveReaders,
-    decimal GrossRevenue
-);
-
-/// <summary>
-/// Lightweight revision details for the Creator Dashboard.
-/// </summary>
-public record CreatorBookRevisionDto(
-    Guid Id,
-    string VersionString,
-    bool IsPublished,
-    DateTime CreatedAt,
-    DateTime? PublishedAt
-);
-
-/// <summary>
-/// Lightweight book publication details for the Creator Dashboard.
-/// </summary>
-public record CreatorBookDto(
-    Guid Id,
-    string Title,
-    int WordCount,
-    int AggregatedReads,
-    Guid? FirstChapterId,
-    CreatorBookRevisionDto? LivePublishedRevision,
-    CreatorBookRevisionDto? CurrentDraftRevision
-);
-
-/// <summary>
-/// Root data envelope for Creator Dashboard loading.
-/// </summary>
-public record CreatorDashboardDataDto(
-    DashboardMetricsDto Metrics,
-    List<CreatorBookDto> Books
-);
-
-/// <summary>
-/// Request DTO for creating a new Book.
-/// </summary>
-public record CreateBookRequestDto(
-    string Title,
-    string? Description
-);
-
-/// <summary>
-/// Response DTO for creating a new Book.
-/// </summary>
-public record CreateBookResponseDto(
-    Guid BookId
-);

src/NexusReader.Application/DTOs/Media/MediaDtos.cs

@@ -1,33 +0,0 @@
-namespace NexusReader.Application.DTOs.Media;
-
-// Note: These DTOs are registered in AppJsonContext.cs for JSON source generation.
-
-/// <summary>
-/// Request DTO for chapter validation/sanitization.
-/// </summary>
-public record ValidateChapterRequest(string Content);
-
-/// <summary>
-/// Response DTO containing sanitized chapter content.
-/// </summary>
-public record ValidateChapterResponse(string SanitizedContent);
-
-/// <summary>
-/// Response DTO containing the uploaded media file URL.
-/// </summary>
-public record UploadResultDto(string Url);
-
-/// <summary>
-/// Represents a structured JSON backup envelope stored in LocalStorage.
-/// </summary>
-public class LocalBackupEnvelope
-{
-    public Guid ChapterId { get; set; }
-    public DateTime Timestamp { get; set; }
-    public string MarkdownContent { get; set; } = string.Empty;
-}
-
-/// <summary>
-/// Request DTO for chapter autosaving.
-/// </summary>
-public record AutosaveChapterRequest(string MarkdownContent);

src/NexusReader.Application/DTOs/User/UpdateThemeRequest.cs

@@ -1,5 +0,0 @@
-using NexusReader.Domain.Enums;
-
-namespace NexusReader.Application.DTOs.User;
-
-public record UpdateThemeRequest(ThemeMode Mode);

src/NexusReader.Application/DTOs/User/UserProfileDto.cs

@@ -1,5 +1,4 @@
 using NexusReader.Application.Constants;
-using NexusReader.Domain.Enums;
 
 namespace NexusReader.Application.DTOs.User;
 
@@ -9,7 +8,6 @@ public record UserProfileDto
     public string UserId { get; init; } = string.Empty;
     public int AITokensUsed { get; init; }
     public Guid TenantId { get; init; }
-    public ThemeMode ThemePreference { get; init; } = ThemeMode.System;
     
     /// <summary>
     /// Relational data for the current subscription plan.

src/NexusReader.Application/Features/Books/Commands/CreateBookCommand.cs

@@ -1,18 +0,0 @@
-using System;
-using NexusReader.Application.Abstractions.Messaging;
-
-namespace NexusReader.Application.Features.Books.Commands;
-
-/// <summary>
-/// Command to create a new Book, initialize its first Working Draft revision, and seed it with a default Introduction chapter.
-/// </summary>
-/// <param name="Title">The title of the new book.</param>
-/// <param name="Description">An optional description of the book.</param>
-/// <param name="UserId">The ID of the creator user.</param>
-/// <param name="TenantId">The tenant ID for multi-tenant isolation.</param>
-public record CreateBookCommand(
-    string Title,
-    string? Description,
-    string UserId,
-    string TenantId
-) : ICommand<Guid>;

src/NexusReader.Application/Features/Books/Commands/CreateBookCommandHandler.cs

@@ -1,103 +0,0 @@
-using System;
-using System.Threading;
-using System.Threading.Tasks;
-using FluentResults;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-using NexusReader.Application.Abstractions.Messaging;
-using NexusReader.Data.Persistence;
-using NexusReader.Domain.Entities;
-
-namespace NexusReader.Application.Features.Books.Commands;
-
-/// <summary>
-/// MediatR handler for creating a Book, creating its initial Working Draft revision,
-/// and seeding a default first chapter ("Introduction") in an atomic database transaction.
-/// </summary>
-public class CreateBookCommandHandler : ICommandHandler<CreateBookCommand, Guid>
-{
-    private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
-
-    public CreateBookCommandHandler(IDbContextFactory<AppDbContext> dbContextFactory)
-    {
-        _dbContextFactory = dbContextFactory;
-    }
-
-    public async Task<Result<Guid>> Handle(CreateBookCommand request, CancellationToken cancellationToken)
-    {
-        if (string.IsNullOrWhiteSpace(request.Title))
-        {
-            return Result.Fail<Guid>(new Error("Book title is required."));
-        }
-
-        using var dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
-        using var transaction = await dbContext.Database.BeginTransactionAsync(cancellationToken);
-
-        try
-        {
-            // 1. Instantiate the Book record mapping Title, UserId, and TenantId
-            var book = new Book
-            {
-                Id = Guid.NewGuid(),
-                Title = request.Title.Trim(),
-                UserId = request.UserId,
-                TenantId = request.TenantId,
-                CurrentDraftRevisionId = null,
-                LivePublishedRevisionId = null
-            };
-
-            dbContext.Books.Add(book);
-
-            // 2. Instantiate the initial BookRevision designated as "Working Draft"
-            var draftRevision = new BookRevision
-            {
-                Id = Guid.NewGuid(),
-                BookId = book.Id,
-                VersionString = "Working Draft",
-                IsPublished = false,
-                CreatedAt = DateTime.UtcNow
-            };
-
-            dbContext.BookRevisions.Add(draftRevision);
-
-            // 3. Automatically instantiate and append a default first Chapter to this new revision
-            var introChapter = new Chapter
-            {
-                Id = Guid.NewGuid(),
-                BookRevisionId = draftRevision.Id,
-                Title = "Introduction",
-                MarkdownContent = "# Introduction\nStart writing here...",
-                SortOrder = 1
-            };
-
-            dbContext.Chapters.Add(introChapter);
-
-            // Save first to generate DB references
-            await dbContext.SaveChangesAsync(cancellationToken);
-
-            // 4. Inject the newly instantiated draft revision ID back into Book.CurrentDraftRevisionId
-            book.CurrentDraftRevisionId = draftRevision.Id;
-
-            // Save the updated Book link
-            await dbContext.SaveChangesAsync(cancellationToken);
-
-            // Commit transaction
-            await transaction.CommitAsync(cancellationToken);
-
-            return Result.Ok(book.Id);
-        }
-        catch (Exception ex)
-        {
-            try
-            {
-                await transaction.RollbackAsync(cancellationToken);
-            }
-            catch (Exception rollbackEx)
-            {
-                Console.WriteLine($"[CreateBook] Transaction rollback failed: {rollbackEx.Message}");
-            }
-
-            return Result.Fail<Guid>(new Error($"Failed to create book: {ex.Message}").CausedBy(ex));
-        }
-    }
-}

src/NexusReader.Application/Features/Books/Commands/PublishBookVersionCommand.cs

@@ -1,12 +0,0 @@
-using NexusReader.Application.Abstractions.Messaging;
-
-namespace NexusReader.Application.Features.Books.Commands;
-
-/// <summary>
-/// Command to publish a new frozen version of a Book, and create a new Working Draft.
-/// </summary>
-/// <param name="BookId">The unique identifier of the Book to publish.</param>
-/// <param name="CustomVersionString">The custom version string to apply (e.g. "v1.0").</param>
-/// <param name="UserId">The ID of the user requesting the action.</param>
-/// <param name="TenantId">The tenant ID for multi-tenant isolation.</param>
-public record PublishBookVersionCommand(Guid BookId, string CustomVersionString, string UserId, string TenantId) : ICommand;

src/NexusReader.Application/Features/Books/Commands/PublishBookVersionCommandHandler.cs

@@ -1,112 +0,0 @@
-using System;
-using System.Threading;
-using System.Threading.Tasks;
-using FluentResults;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-using NexusReader.Application.Abstractions.Messaging;
-using NexusReader.Data.Persistence;
-using NexusReader.Domain.Entities;
-using NexusReader.Domain.Exceptions;
-
-namespace NexusReader.Application.Features.Books.Commands;
-
-/// <summary>
-/// MediatR handler for publishing a Book version and setting up the next Working Draft.
-/// </summary>
-public class PublishBookVersionCommandHandler : ICommandHandler<PublishBookVersionCommand>
-{
-    private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
-
-    public PublishBookVersionCommandHandler(IDbContextFactory<AppDbContext> dbContextFactory)
-    {
-        _dbContextFactory = dbContextFactory;
-    }
-
-    public async Task<Result> Handle(PublishBookVersionCommand request, CancellationToken cancellationToken)
-    {
-        using var dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
-
-        // Fetch the Book including its CurrentDraftRevision and all associated Chapters,
-        // enforcing that the book belongs to the requested TenantId and UserId to prevent cross-tenant data leaks.
-        var book = await dbContext.Books
-            .Include(b => b.CurrentDraftRevision)
-                .ThenInclude(r => r!.Chapters)
-            .FirstOrDefaultAsync(
-                b => b.Id == request.BookId && b.UserId == request.UserId && b.TenantId == request.TenantId, 
-                cancellationToken);
-
-        if (book == null)
-        {
-            return Result.Fail(new Error($"Book with ID '{request.BookId}' was not found."));
-        }
-
-        var oldDraftRevision = book.CurrentDraftRevision;
-        if (oldDraftRevision == null)
-        {
-            return Result.Fail(new Error("The book does not have an active draft revision to publish."));
-        }
-
-        // Start ACID transaction
-        using var transaction = await dbContext.Database.BeginTransactionAsync(cancellationToken);
-        try
-        {
-            // 1. Update the current draft revision: Set IsPublished = true, PublishedAt = now, VersionString = custom
-            oldDraftRevision.IsPublished = true;
-            oldDraftRevision.PublishedAt = DateTime.UtcNow;
-            oldDraftRevision.VersionString = request.CustomVersionString;
-
-            // 2. Point the Book.LivePublishedRevisionId to this newly frozen revision ID
-            book.LivePublishedRevisionId = oldDraftRevision.Id;
-
-            // 3. Execute Deep Snapshot: Instantiate a brand new BookRevision representing the next "Working Draft"
-            var newDraftRevision = new BookRevision
-            {
-                Id = Guid.NewGuid(),
-                BookId = book.Id,
-                VersionString = "Working Draft",
-                IsPublished = false,
-                CreatedAt = DateTime.UtcNow
-            };
-
-            dbContext.BookRevisions.Add(newDraftRevision);
-
-            // Replicate/clone chapters into new Chapter objects associated with the new draft revision.
-            // Reset identities by explicitly instantiating completely new Chapter objects with Guid.NewGuid().
-            foreach (var oldChapter in oldDraftRevision.Chapters)
-            {
-                var newChapter = new Chapter
-                {
-                    Id = Guid.NewGuid(),
-                    BookRevisionId = newDraftRevision.Id,
-                    Title = oldChapter.Title,
-                    MarkdownContent = oldChapter.MarkdownContent,
-                    SortOrder = oldChapter.SortOrder
-                };
-                dbContext.Chapters.Add(newChapter);
-            }
-
-            // 4. Assign the new draft revision ID to Book.CurrentDraftRevisionId
-            book.CurrentDraftRevisionId = newDraftRevision.Id;
-
-            // Save changes and commit transaction
-            await dbContext.SaveChangesAsync(cancellationToken);
-            await transaction.CommitAsync(cancellationToken);
-
-            return Result.Ok();
-        }
-        catch (Exception ex)
-        {
-            try
-            {
-                await transaction.RollbackAsync(cancellationToken);
-            }
-            catch (Exception rollbackEx)
-            {
-                Console.WriteLine($"[PublishBookVersion] Transaction rollback failed: {rollbackEx.Message}");
-            }
-
-            return Result.Fail(new Error($"Failed to publish book version: {ex.Message}").CausedBy(ex));
-        }
-    }
-}

src/NexusReader.Application/Queries/Creator/GetBookRevisionsQuery.cs

@@ -1,63 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.EntityFrameworkCore;
-using NexusReader.Application.Abstractions.Messaging;
-using NexusReader.Application.DTOs.Creator;
-using NexusReader.Data.Persistence;
-using NexusReader.Domain.Exceptions;
-
-namespace NexusReader.Application.Queries.Creator;
-
-/// <summary>
-/// Query to load all revisions for a specific Book, checking multi-tenant ownership boundaries.
-/// </summary>
-/// <param name="BookId">The unique identifier of the target Book.</param>
-/// <param name="UserId">The ID of the creator requesting revision data.</param>
-/// <param name="TenantId">The tenant ID for multi-tenant isolation.</param>
-public record GetBookRevisionsQuery(Guid BookId, string UserId, string TenantId) : IQuery<List<CreatorBookRevisionDto>>;
-
-/// <summary>
-/// Handler that lists past revisions of a Book, verifying ownership to prevent cross-tenant leakages.
-/// </summary>
-public class GetBookRevisionsQueryHandler : IQueryHandler<GetBookRevisionsQuery, List<CreatorBookRevisionDto>>
-{
-    private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
-
-    public GetBookRevisionsQueryHandler(IDbContextFactory<AppDbContext> dbContextFactory)
-    {
-        _dbContextFactory = dbContextFactory;
-    }
-
-    public async Task<FluentResults.Result<List<CreatorBookRevisionDto>>> Handle(GetBookRevisionsQuery request, CancellationToken cancellationToken)
-    {
-        using var dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
-
-        // Verify the book exists and belongs to this tenant/user to prevent cross-tenant data leaks
-        var bookExists = await dbContext.Books
-            .AnyAsync(b => b.Id == request.BookId && b.UserId == request.UserId && b.TenantId == request.TenantId, cancellationToken);
-
-        if (!bookExists)
-        {
-            return FluentResults.Result.Fail<List<CreatorBookRevisionDto>>(new FluentResults.Error($"Book with ID '{request.BookId}' was not found."));
-        }
-
-        // Fetch all revisions sorted chronologically
-        var revisions = await dbContext.BookRevisions
-            .AsNoTracking()
-            .Where(r => r.BookId == request.BookId)
-            .OrderByDescending(r => r.CreatedAt)
-            .Select(r => new CreatorBookRevisionDto(
-                r.Id,
-                r.VersionString,
-                r.IsPublished,
-                r.CreatedAt,
-                r.PublishedAt
-            ))
-            .ToListAsync(cancellationToken);
-
-        return FluentResults.Result.Ok(revisions);
-    }
-}

src/NexusReader.Application/Queries/Creator/GetCreatorDashboardDataQuery.cs

@@ -1,109 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.EntityFrameworkCore;
-using NexusReader.Application.Abstractions.Messaging;
-using NexusReader.Application.DTOs.Creator;
-using NexusReader.Data.Persistence;
-
-namespace NexusReader.Application.Queries.Creator;
-
-/// <summary>
-/// Query to load aggregated Creator Dashboard telemetry metrics and book listings.
-/// </summary>
-/// <param name="UserId">The ID of the creator requesting dashboard data.</param>
-/// <param name="TenantId">The tenant ID for multi-tenant isolation.</param>
-public record GetCreatorDashboardDataQuery(string UserId, string TenantId) : IQuery<CreatorDashboardDataDto>;
-
-/// <summary>
-/// Handler that executes projection-only LINQ queries to aggregate metrics and compute word counts
-/// without loading raw chapter content into memory or tracking them in the EF Core Change Tracker.
-/// </summary>
-public class GetCreatorDashboardDataQueryHandler : IQueryHandler<GetCreatorDashboardDataQuery, CreatorDashboardDataDto>
-{
-    private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
-
-    public GetCreatorDashboardDataQueryHandler(IDbContextFactory<AppDbContext> dbContextFactory)
-    {
-        _dbContextFactory = dbContextFactory;
-    }
-
-    public async Task<FluentResults.Result<CreatorDashboardDataDto>> Handle(GetCreatorDashboardDataQuery request, CancellationToken cancellationToken)
-    {
-        using var dbContext = await _dbContextFactory.CreateDbContextAsync(cancellationToken);
-
-        // Execute projection-only LINQ query. The heavy MarkdownContent is projected only as integer lengths.
-        var projectedBooks = await dbContext.Books
-            .AsNoTracking()
-            .Where(b => b.UserId == request.UserId && b.TenantId == request.TenantId)
-            .Select(b => new
-            {
-                b.Id,
-                b.Title,
-                LivePublishedRevision = b.LivePublishedRevision == null ? null : new CreatorBookRevisionDto(
-                    b.LivePublishedRevision.Id,
-                    b.LivePublishedRevision.VersionString,
-                    b.LivePublishedRevision.IsPublished,
-                    b.LivePublishedRevision.CreatedAt,
-                    b.LivePublishedRevision.PublishedAt
-                ),
-                CurrentDraftRevision = b.CurrentDraftRevision == null ? null : new CreatorBookRevisionDto(
-                    b.CurrentDraftRevision.Id,
-                    b.CurrentDraftRevision.VersionString,
-                    b.CurrentDraftRevision.IsPublished,
-                    b.CurrentDraftRevision.CreatedAt,
-                    b.CurrentDraftRevision.PublishedAt
-                ),
-                FirstChapterId = b.CurrentDraftRevision == null 
-                    ? (Guid?)null 
-                    : b.CurrentDraftRevision.Chapters.OrderBy(c => c.SortOrder).Select(c => c.Id).FirstOrDefault(),
-                ChapterContentLengths = b.CurrentDraftRevision == null 
-                    ? new List<int>() 
-                    : b.CurrentDraftRevision.Chapters.Select(c => c.MarkdownContent.Length).ToList()
-            })
-            .ToListAsync(cancellationToken);
-
-        var booksList = new List<CreatorBookDto>();
-        int totalReads = 0;
-        int totalWords = 0;
-
-        foreach (var pBook in projectedBooks)
-        {
-            // Estimate word count (approx. 6 characters per word as a database-friendly standard length)
-            int wordCount = pBook.ChapterContentLengths.Sum(len => len / 6);
-            totalWords += wordCount;
-
-            // Generate deterministic simulated telemetry metrics scoped to this Book
-            int bookReads = Math.Abs(pBook.Id.GetHashCode() % 1000) + 120;
-            totalReads += bookReads;
-
-            var bookDto = new CreatorBookDto(
-                pBook.Id,
-                pBook.Title,
-                wordCount,
-                bookReads,
-                pBook.FirstChapterId,
-                pBook.LivePublishedRevision,
-                pBook.CurrentDraftRevision
-            );
-
-            booksList.Add(bookDto);
-        }
-
-        // Calculate aggregate dashboard metrics based on projected stats
-        int activeReaders = projectedBooks.Count == 0 ? 0 : Math.Abs(request.UserId.GetHashCode() % 15) + 3;
-        decimal grossRevenue = totalReads * 1.49m;
-        double avgReadTime = projectedBooks.Count == 0 ? 0 : Math.Round(totalWords / 250.0, 1); // standard 250 words per minute reading speed
-
-        var metrics = new DashboardMetricsDto(
-            totalReads,
-            avgReadTime,
-            activeReaders,
-            grossRevenue
-        );
-
-        return FluentResults.Result.Ok(new CreatorDashboardDataDto(metrics, booksList));
-    }
-}

src/NexusReader.Application/Queries/User/GetUserProfileQueryHandler.cs

@@ -27,7 +27,6 @@ public class GetUserProfileQueryHandler : IRequestHandler<GetUserProfileQuery, R
                 UserId = u.Id,
                 AITokensUsed = u.AITokensUsed,
                 TenantIdString = u.TenantId,
-                ThemePreference = u.ThemePreference,
                 Plan = u.SubscriptionPlan != null ? new SubscriptionPlanDto
                 {
                     Id = u.SubscriptionPlan.Id,
@@ -107,7 +106,6 @@ public class GetUserProfileQueryHandler : IRequestHandler<GetUserProfileQuery, R
             AverageQuizScore = averageQuizScore,
             DisplayName = userRaw.DisplayName,
             BooksReadCount = userRaw.BooksReadCount,
-            ThemePreference = userRaw.ThemePreference,
             ConceptsMappedCount = conceptsMappedCount,
             LastReadBook = userRaw.LastReadBook,
             RecentQuizzes = userRaw.QuizResults.OrderByDescending(q => q.CompletedDate).Take(5).Select(q => new QuizResultDto

src/NexusReader.Data/Migrations/20260607104453_AddThemePreference.Designer.cs

@@ -1,711 +0,0 @@
-// <auto-generated />
-using System;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Migrations;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-using NexusReader.Data.Persistence;
-using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
-
-#nullable disable
-
-namespace NexusReader.Data.Migrations
-{
-    [DbContext(typeof(AppDbContext))]
-    [Migration("20260607104453_AddThemePreference")]
-    partial class AddThemePreference
-    {
-        /// <inheritdoc />
-        protected override void BuildTargetModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder
-                .HasAnnotation("ProductVersion", "10.0.7")
-                .HasAnnotation("Relational:MaxIdentifierLength", 63);
-
-            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
-                {
-                    b.Property<string>("Id")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ConcurrencyStamp")
-                        .IsConcurrencyToken()
-                        .HasColumnType("text");
-
-                    b.Property<string>("Name")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<string>("NormalizedName")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("NormalizedName")
-                        .IsUnique()
-                        .HasDatabaseName("RoleNameIndex");
-
-                    b.ToTable("AspNetRoles", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("ClaimType")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ClaimValue")
-                        .HasColumnType("text");
-
-                    b.Property<string>("RoleId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("RoleId");
-
-                    b.ToTable("AspNetRoleClaims", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("ClaimType")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ClaimValue")
-                        .HasColumnType("text");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("AspNetUserClaims", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
-                {
-                    b.Property<string>("LoginProvider")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ProviderKey")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ProviderDisplayName")
-                        .HasColumnType("text");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("LoginProvider", "ProviderKey");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("AspNetUserLogins", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
-                {
-                    b.Property<string>("UserId")
-                        .HasColumnType("text");
-
-                    b.Property<string>("RoleId")
-                        .HasColumnType("text");
-
-                    b.HasKey("UserId", "RoleId");
-
-                    b.HasIndex("RoleId");
-
-                    b.ToTable("AspNetUserRoles", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
-                {
-                    b.Property<string>("UserId")
-                        .HasColumnType("text");
-
-                    b.Property<string>("LoginProvider")
-                        .HasColumnType("text");
-
-                    b.Property<string>("Name")
-                        .HasColumnType("text");
-
-                    b.Property<string>("Value")
-                        .HasColumnType("text");
-
-                    b.HasKey("UserId", "LoginProvider", "Name");
-
-                    b.ToTable("AspNetUserTokens", (string)null);
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Author", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("Name")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.HasKey("Id");
-
-                    b.ToTable("Authors");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Ebook", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("AddedDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<int>("AuthorId")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("CoverUrl")
-                        .HasColumnType("text");
-
-                    b.Property<string>("Description")
-                        .HasColumnType("text");
-
-                    b.Property<string>("FilePath")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<bool>("IsReadyForReading")
-                        .HasColumnType("boolean");
-
-                    b.Property<string>("LastChapter")
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<int>("LastChapterIndex")
-                        .HasColumnType("integer");
-
-                    b.Property<DateTime?>("LastReadDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<double>("Progress")
-                        .HasColumnType("double precision");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("AuthorId");
-
-                    b.HasIndex("TenantId");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("Ebooks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnit", b =>
-                {
-                    b.Property<string>("Id")
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Content")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<DateTime>("CreatedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<Guid?>("EbookId")
-                        .HasColumnType("uuid");
-
-                    b.Property<string>("MetadataJson")
-                        .HasColumnType("text");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<int>("Type")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("Version")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("EbookId");
-
-                    b.HasIndex("TenantId");
-
-                    b.ToTable("KnowledgeUnits");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnitLink", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("RelationType")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.Property<string>("SourceUnitId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("TargetUnitId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("SourceUnitId");
-
-                    b.HasIndex("TargetUnitId");
-
-                    b.ToTable("KnowledgeUnitLinks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.NexusUser", b =>
-                {
-                    b.Property<string>("Id")
-                        .HasColumnType("text");
-
-                    b.Property<int>("AITokenLimit")
-                        .HasColumnType("integer");
-
-                    b.Property<int>("AITokensUsed")
-                        .HasColumnType("integer");
-
-                    b.Property<int>("AccessFailedCount")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("ConcurrencyStamp")
-                        .IsConcurrencyToken()
-                        .HasColumnType("text");
-
-                    b.Property<string>("DisplayName")
-                        .HasMaxLength(100)
-                        .HasColumnType("character varying(100)");
-
-                    b.Property<string>("Email")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<bool>("EmailConfirmed")
-                        .HasColumnType("boolean");
-
-                    b.Property<DateTime?>("LastAiActionDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<DateTime?>("LastReadAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("LastReadPageId")
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<bool>("LockoutEnabled")
-                        .HasColumnType("boolean");
-
-                    b.Property<DateTimeOffset?>("LockoutEnd")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("NormalizedEmail")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<string>("NormalizedUserName")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<string>("PasswordHash")
-                        .HasColumnType("text");
-
-                    b.Property<string>("PhoneNumber")
-                        .HasColumnType("text");
-
-                    b.Property<bool>("PhoneNumberConfirmed")
-                        .HasColumnType("boolean");
-
-                    b.Property<string>("SecurityStamp")
-                        .HasColumnType("text");
-
-                    b.Property<int>("SubscriptionPlanId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer")
-                        .HasDefaultValue(1);
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<int>("ThemePreference")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer")
-                        .HasDefaultValue(0);
-
-                    b.Property<bool>("TwoFactorEnabled")
-                        .HasColumnType("boolean");
-
-                    b.Property<string>("UserName")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("NormalizedEmail")
-                        .HasDatabaseName("EmailIndex");
-
-                    b.HasIndex("NormalizedUserName")
-                        .IsUnique()
-                        .HasDatabaseName("UserNameIndex");
-
-                    b.HasIndex("SubscriptionPlanId");
-
-                    b.HasIndex("TenantId");
-
-                    b.ToTable("AspNetUsers", (string)null);
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.QuizResult", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("CompletedDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<int>("Score")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Topic")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<int>("TotalQuestions")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("TenantId");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("QuizResults");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.SemanticKnowledgeCache", b =>
-                {
-                    b.Property<string>("ContentHash")
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<DateTime>("CreatedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("JsonData")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<string>("ModelId")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.Property<string>("OriginalText")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<string>("PromptVersion")
-                        .IsRequired()
-                        .HasMaxLength(10)
-                        .HasColumnType("character varying(10)");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.HasKey("ContentHash");
-
-                    b.HasIndex("ContentHash")
-                        .IsUnique();
-
-                    b.HasIndex("TenantId");
-
-                    b.ToTable("SemanticKnowledgeCache");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.SubscriptionPlan", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<int>("AITokenLimit")
-                        .HasColumnType("integer");
-
-                    b.Property<bool>("IsUnlimitedTokens")
-                        .HasColumnType("boolean");
-
-                    b.Property<decimal>("MonthlyPrice")
-                        .HasColumnType("numeric");
-
-                    b.Property<string>("PlanName")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.Property<string>("StripeProductId")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("PlanName")
-                        .IsUnique();
-
-                    b.ToTable("SubscriptionPlans");
-
-                    b.HasData(
-                        new
-                        {
-                            Id = 1,
-                            AITokenLimit = 5000,
-                            IsUnlimitedTokens = false,
-                            MonthlyPrice = 0m,
-                            PlanName = "Free",
-                            StripeProductId = "prod_Free789"
-                        },
-                        new
-                        {
-                            Id = 2,
-                            AITokenLimit = 10000,
-                            IsUnlimitedTokens = false,
-                            MonthlyPrice = 9.99m,
-                            PlanName = "Basic",
-                            StripeProductId = "prod_basic_placeholder"
-                        },
-                        new
-                        {
-                            Id = 3,
-                            AITokenLimit = 50000,
-                            IsUnlimitedTokens = false,
-                            MonthlyPrice = 19.99m,
-                            PlanName = "Pro",
-                            StripeProductId = "prod_pro_placeholder"
-                        },
-                        new
-                        {
-                            Id = 4,
-                            AITokenLimit = 1000000000,
-                            IsUnlimitedTokens = true,
-                            MonthlyPrice = 99.99m,
-                            PlanName = "Enterprise",
-                            StripeProductId = "prod_enterprise_placeholder"
-                        });
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
-                {
-                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
-                        .WithMany()
-                        .HasForeignKey("RoleId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
-                {
-                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
-                        .WithMany()
-                        .HasForeignKey("RoleId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Ebook", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.Author", "Author")
-                        .WithMany("Ebooks")
-                        .HasForeignKey("AuthorId")
-                        .OnDelete(DeleteBehavior.Restrict)
-                        .IsRequired();
-
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", "User")
-                        .WithMany("Ebooks")
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Author");
-
-                    b.Navigation("User");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnit", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.Ebook", "Ebook")
-                        .WithMany()
-                        .HasForeignKey("EbookId")
-                        .OnDelete(DeleteBehavior.Cascade);
-
-                    b.Navigation("Ebook");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnitLink", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.KnowledgeUnit", "SourceUnit")
-                        .WithMany("OutgoingLinks")
-                        .HasForeignKey("SourceUnitId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.HasOne("NexusReader.Domain.Entities.KnowledgeUnit", "TargetUnit")
-                        .WithMany("IncomingLinks")
-                        .HasForeignKey("TargetUnitId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("SourceUnit");
-
-                    b.Navigation("TargetUnit");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.NexusUser", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.SubscriptionPlan", "SubscriptionPlan")
-                        .WithMany()
-                        .HasForeignKey("SubscriptionPlanId")
-                        .OnDelete(DeleteBehavior.Restrict)
-                        .IsRequired();
-
-                    b.Navigation("SubscriptionPlan");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.QuizResult", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", "User")
-                        .WithMany("QuizResults")
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("User");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Author", b =>
-                {
-                    b.Navigation("Ebooks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnit", b =>
-                {
-                    b.Navigation("IncomingLinks");
-
-                    b.Navigation("OutgoingLinks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.NexusUser", b =>
-                {
-                    b.Navigation("Ebooks");
-
-                    b.Navigation("QuizResults");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}

src/NexusReader.Data/Migrations/20260607104453_AddThemePreference.cs

@@ -1,56 +0,0 @@
-using Microsoft.EntityFrameworkCore.Migrations;
-using Pgvector;
-
-#nullable disable
-
-namespace NexusReader.Data.Migrations
-{
-    /// <inheritdoc />
-    public partial class AddThemePreference : Migration
-    {
-        /// <inheritdoc />
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropColumn(
-                name: "Vector",
-                table: "SemanticKnowledgeCache");
-
-            migrationBuilder.DropColumn(
-                name: "Vector",
-                table: "KnowledgeUnits");
-
-            migrationBuilder.AlterDatabase()
-                .OldAnnotation("Npgsql:PostgresExtension:vector", ",,");
-
-            migrationBuilder.AddColumn<int>(
-                name: "ThemePreference",
-                table: "AspNetUsers",
-                type: "integer",
-                nullable: false,
-                defaultValue: 0);
-        }
-
-        /// <inheritdoc />
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropColumn(
-                name: "ThemePreference",
-                table: "AspNetUsers");
-
-            migrationBuilder.AlterDatabase()
-                .Annotation("Npgsql:PostgresExtension:vector", ",,");
-
-            migrationBuilder.AddColumn<Vector>(
-                name: "Vector",
-                table: "SemanticKnowledgeCache",
-                type: "vector(1536)",
-                nullable: true);
-
-            migrationBuilder.AddColumn<Vector>(
-                name: "Vector",
-                table: "KnowledgeUnits",
-                type: "vector(768)",
-                nullable: true);
-        }
-    }
-}

src/NexusReader.Data/Migrations/20260611183927_AddBookVersioningSupport.Designer.cs

@@ -1,865 +0,0 @@
-// <auto-generated />
-using System;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.EntityFrameworkCore.Migrations;
-using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
-using NexusReader.Data.Persistence;
-using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
-
-#nullable disable
-
-namespace NexusReader.Data.Migrations
-{
-    [DbContext(typeof(AppDbContext))]
-    [Migration("20260611183927_AddBookVersioningSupport")]
-    partial class AddBookVersioningSupport
-    {
-        /// <inheritdoc />
-        protected override void BuildTargetModel(ModelBuilder modelBuilder)
-        {
-#pragma warning disable 612, 618
-            modelBuilder
-                .HasAnnotation("ProductVersion", "10.0.7")
-                .HasAnnotation("Relational:MaxIdentifierLength", 63);
-
-            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
-                {
-                    b.Property<string>("Id")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ConcurrencyStamp")
-                        .IsConcurrencyToken()
-                        .HasColumnType("text");
-
-                    b.Property<string>("Name")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<string>("NormalizedName")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("NormalizedName")
-                        .IsUnique()
-                        .HasDatabaseName("RoleNameIndex");
-
-                    b.ToTable("AspNetRoles", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("ClaimType")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ClaimValue")
-                        .HasColumnType("text");
-
-                    b.Property<string>("RoleId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("RoleId");
-
-                    b.ToTable("AspNetRoleClaims", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("ClaimType")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ClaimValue")
-                        .HasColumnType("text");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("AspNetUserClaims", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
-                {
-                    b.Property<string>("LoginProvider")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ProviderKey")
-                        .HasColumnType("text");
-
-                    b.Property<string>("ProviderDisplayName")
-                        .HasColumnType("text");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("LoginProvider", "ProviderKey");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("AspNetUserLogins", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
-                {
-                    b.Property<string>("UserId")
-                        .HasColumnType("text");
-
-                    b.Property<string>("RoleId")
-                        .HasColumnType("text");
-
-                    b.HasKey("UserId", "RoleId");
-
-                    b.HasIndex("RoleId");
-
-                    b.ToTable("AspNetUserRoles", (string)null);
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
-                {
-                    b.Property<string>("UserId")
-                        .HasColumnType("text");
-
-                    b.Property<string>("LoginProvider")
-                        .HasColumnType("text");
-
-                    b.Property<string>("Name")
-                        .HasColumnType("text");
-
-                    b.Property<string>("Value")
-                        .HasColumnType("text");
-
-                    b.HasKey("UserId", "LoginProvider", "Name");
-
-                    b.ToTable("AspNetUserTokens", (string)null);
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Author", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("Name")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.HasKey("Id");
-
-                    b.ToTable("Authors");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Book", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid?>("CurrentDraftRevisionId")
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid?>("LivePublishedRevisionId")
-                        .HasColumnType("uuid");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("CurrentDraftRevisionId");
-
-                    b.HasIndex("LivePublishedRevisionId");
-
-                    b.HasIndex("TenantId");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("Books");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.BookRevision", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid>("BookId")
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("CreatedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<bool>("IsPublished")
-                        .HasColumnType("boolean");
-
-                    b.Property<DateTime?>("PublishedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("VersionString")
-                        .IsRequired()
-                        .HasMaxLength(100)
-                        .HasColumnType("character varying(100)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("BookId");
-
-                    b.ToTable("BookRevisions");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Chapter", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid>("BookRevisionId")
-                        .HasColumnType("uuid");
-
-                    b.Property<string>("MarkdownContent")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<int>("SortOrder")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("BookRevisionId");
-
-                    b.ToTable("Chapters");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Ebook", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("AddedDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<int>("AuthorId")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("CoverUrl")
-                        .HasColumnType("text");
-
-                    b.Property<string>("Description")
-                        .HasColumnType("text");
-
-                    b.Property<string>("FilePath")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<bool>("IsReadyForReading")
-                        .HasColumnType("boolean");
-
-                    b.Property<string>("LastChapter")
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<int>("LastChapterIndex")
-                        .HasColumnType("integer");
-
-                    b.Property<DateTime?>("LastReadDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<double>("Progress")
-                        .HasColumnType("double precision");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("AuthorId");
-
-                    b.HasIndex("TenantId");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("Ebooks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnit", b =>
-                {
-                    b.Property<string>("Id")
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Content")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<DateTime>("CreatedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<Guid?>("EbookId")
-                        .HasColumnType("uuid");
-
-                    b.Property<string>("MetadataJson")
-                        .HasColumnType("text");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<int>("Type")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("Version")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("EbookId");
-
-                    b.HasIndex("TenantId");
-
-                    b.ToTable("KnowledgeUnits");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnitLink", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<string>("RelationType")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.Property<string>("SourceUnitId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("TargetUnitId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("SourceUnitId");
-
-                    b.HasIndex("TargetUnitId");
-
-                    b.ToTable("KnowledgeUnitLinks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.NexusUser", b =>
-                {
-                    b.Property<string>("Id")
-                        .HasColumnType("text");
-
-                    b.Property<int>("AITokenLimit")
-                        .HasColumnType("integer");
-
-                    b.Property<int>("AITokensUsed")
-                        .HasColumnType("integer");
-
-                    b.Property<int>("AccessFailedCount")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("ConcurrencyStamp")
-                        .IsConcurrencyToken()
-                        .HasColumnType("text");
-
-                    b.Property<string>("DisplayName")
-                        .HasMaxLength(100)
-                        .HasColumnType("character varying(100)");
-
-                    b.Property<string>("Email")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<bool>("EmailConfirmed")
-                        .HasColumnType("boolean");
-
-                    b.Property<DateTime?>("LastAiActionDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<DateTime?>("LastReadAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("LastReadPageId")
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<bool>("LockoutEnabled")
-                        .HasColumnType("boolean");
-
-                    b.Property<DateTimeOffset?>("LockoutEnd")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("NormalizedEmail")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<string>("NormalizedUserName")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.Property<string>("PasswordHash")
-                        .HasColumnType("text");
-
-                    b.Property<string>("PhoneNumber")
-                        .HasColumnType("text");
-
-                    b.Property<bool>("PhoneNumberConfirmed")
-                        .HasColumnType("boolean");
-
-                    b.Property<string>("SecurityStamp")
-                        .HasColumnType("text");
-
-                    b.Property<int>("SubscriptionPlanId")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer")
-                        .HasDefaultValue(1);
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<int>("ThemePreference")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer")
-                        .HasDefaultValue(0);
-
-                    b.Property<bool>("TwoFactorEnabled")
-                        .HasColumnType("boolean");
-
-                    b.Property<string>("UserName")
-                        .HasMaxLength(256)
-                        .HasColumnType("character varying(256)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("NormalizedEmail")
-                        .HasDatabaseName("EmailIndex");
-
-                    b.HasIndex("NormalizedUserName")
-                        .IsUnique()
-                        .HasDatabaseName("UserNameIndex");
-
-                    b.HasIndex("SubscriptionPlanId");
-
-                    b.HasIndex("TenantId");
-
-                    b.ToTable("AspNetUsers", (string)null);
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.QuizResult", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("CompletedDate")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<int>("Score")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Topic")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<int>("TotalQuestions")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("TenantId");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("QuizResults");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.SemanticKnowledgeCache", b =>
-                {
-                    b.Property<string>("ContentHash")
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<DateTime>("CreatedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("JsonData")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<string>("ModelId")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.Property<string>("OriginalText")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<string>("PromptVersion")
-                        .IsRequired()
-                        .HasMaxLength(10)
-                        .HasColumnType("character varying(10)");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.HasKey("ContentHash");
-
-                    b.HasIndex("ContentHash")
-                        .IsUnique();
-
-                    b.HasIndex("TenantId");
-
-                    b.ToTable("SemanticKnowledgeCache");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.SubscriptionPlan", b =>
-                {
-                    b.Property<int>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer");
-
-                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
-
-                    b.Property<int>("AITokenLimit")
-                        .HasColumnType("integer");
-
-                    b.Property<bool>("IsUnlimitedTokens")
-                        .HasColumnType("boolean");
-
-                    b.Property<decimal>("MonthlyPrice")
-                        .HasColumnType("numeric");
-
-                    b.Property<string>("PlanName")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.Property<string>("StripeProductId")
-                        .IsRequired()
-                        .HasMaxLength(50)
-                        .HasColumnType("character varying(50)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("PlanName")
-                        .IsUnique();
-
-                    b.ToTable("SubscriptionPlans");
-
-                    b.HasData(
-                        new
-                        {
-                            Id = 1,
-                            AITokenLimit = 5000,
-                            IsUnlimitedTokens = false,
-                            MonthlyPrice = 0m,
-                            PlanName = "Free",
-                            StripeProductId = "prod_Free789"
-                        },
-                        new
-                        {
-                            Id = 2,
-                            AITokenLimit = 10000,
-                            IsUnlimitedTokens = false,
-                            MonthlyPrice = 9.99m,
-                            PlanName = "Basic",
-                            StripeProductId = "prod_basic_placeholder"
-                        },
-                        new
-                        {
-                            Id = 3,
-                            AITokenLimit = 50000,
-                            IsUnlimitedTokens = false,
-                            MonthlyPrice = 19.99m,
-                            PlanName = "Pro",
-                            StripeProductId = "prod_pro_placeholder"
-                        },
-                        new
-                        {
-                            Id = 4,
-                            AITokenLimit = 1000000000,
-                            IsUnlimitedTokens = true,
-                            MonthlyPrice = 99.99m,
-                            PlanName = "Enterprise",
-                            StripeProductId = "prod_enterprise_placeholder"
-                        });
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
-                {
-                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
-                        .WithMany()
-                        .HasForeignKey("RoleId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
-                {
-                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
-                        .WithMany()
-                        .HasForeignKey("RoleId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", null)
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Book", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.BookRevision", "CurrentDraftRevision")
-                        .WithMany()
-                        .HasForeignKey("CurrentDraftRevisionId")
-                        .OnDelete(DeleteBehavior.Restrict);
-
-                    b.HasOne("NexusReader.Domain.Entities.BookRevision", "LivePublishedRevision")
-                        .WithMany()
-                        .HasForeignKey("LivePublishedRevisionId")
-                        .OnDelete(DeleteBehavior.Restrict);
-
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", "User")
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("CurrentDraftRevision");
-
-                    b.Navigation("LivePublishedRevision");
-
-                    b.Navigation("User");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.BookRevision", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.Book", "Book")
-                        .WithMany("Revisions")
-                        .HasForeignKey("BookId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Book");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Chapter", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.BookRevision", "BookRevision")
-                        .WithMany("Chapters")
-                        .HasForeignKey("BookRevisionId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("BookRevision");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Ebook", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.Author", "Author")
-                        .WithMany("Ebooks")
-                        .HasForeignKey("AuthorId")
-                        .OnDelete(DeleteBehavior.Restrict)
-                        .IsRequired();
-
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", "User")
-                        .WithMany("Ebooks")
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Author");
-
-                    b.Navigation("User");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnit", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.Ebook", "Ebook")
-                        .WithMany()
-                        .HasForeignKey("EbookId")
-                        .OnDelete(DeleteBehavior.Cascade);
-
-                    b.Navigation("Ebook");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnitLink", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.KnowledgeUnit", "SourceUnit")
-                        .WithMany("OutgoingLinks")
-                        .HasForeignKey("SourceUnitId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.HasOne("NexusReader.Domain.Entities.KnowledgeUnit", "TargetUnit")
-                        .WithMany("IncomingLinks")
-                        .HasForeignKey("TargetUnitId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("SourceUnit");
-
-                    b.Navigation("TargetUnit");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.NexusUser", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.SubscriptionPlan", "SubscriptionPlan")
-                        .WithMany()
-                        .HasForeignKey("SubscriptionPlanId")
-                        .OnDelete(DeleteBehavior.Restrict)
-                        .IsRequired();
-
-                    b.Navigation("SubscriptionPlan");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.QuizResult", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", "User")
-                        .WithMany("QuizResults")
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("User");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Author", b =>
-                {
-                    b.Navigation("Ebooks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Book", b =>
-                {
-                    b.Navigation("Revisions");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.BookRevision", b =>
-                {
-                    b.Navigation("Chapters");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnit", b =>
-                {
-                    b.Navigation("IncomingLinks");
-
-                    b.Navigation("OutgoingLinks");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.NexusUser", b =>
-                {
-                    b.Navigation("Ebooks");
-
-                    b.Navigation("QuizResults");
-                });
-#pragma warning restore 612, 618
-        }
-    }
-}

src/NexusReader.Data/Migrations/20260611183927_AddBookVersioningSupport.cs

@@ -1,141 +0,0 @@
-using System;
-using Microsoft.EntityFrameworkCore.Migrations;
-
-#nullable disable
-
-namespace NexusReader.Data.Migrations
-{
-    /// <inheritdoc />
-    public partial class AddBookVersioningSupport : Migration
-    {
-        /// <inheritdoc />
-        protected override void Up(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.CreateTable(
-                name: "BookRevisions",
-                columns: table => new
-                {
-                    Id = table.Column<Guid>(type: "uuid", nullable: false),
-                    BookId = table.Column<Guid>(type: "uuid", nullable: false),
-                    VersionString = table.Column<string>(type: "character varying(100)", maxLength: 100, nullable: false),
-                    IsPublished = table.Column<bool>(type: "boolean", nullable: false),
-                    CreatedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
-                    PublishedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: true)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_BookRevisions", x => x.Id);
-                });
-
-            migrationBuilder.CreateTable(
-                name: "Books",
-                columns: table => new
-                {
-                    Id = table.Column<Guid>(type: "uuid", nullable: false),
-                    Title = table.Column<string>(type: "character varying(255)", maxLength: 255, nullable: false),
-                    TenantId = table.Column<string>(type: "character varying(128)", maxLength: 128, nullable: false),
-                    UserId = table.Column<string>(type: "text", nullable: false),
-                    CurrentDraftRevisionId = table.Column<Guid>(type: "uuid", nullable: true),
-                    LivePublishedRevisionId = table.Column<Guid>(type: "uuid", nullable: true)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_Books", x => x.Id);
-                    table.ForeignKey(
-                        name: "FK_Books_AspNetUsers_UserId",
-                        column: x => x.UserId,
-                        principalTable: "AspNetUsers",
-                        principalColumn: "Id",
-                        onDelete: ReferentialAction.Cascade);
-                    table.ForeignKey(
-                        name: "FK_Books_BookRevisions_CurrentDraftRevisionId",
-                        column: x => x.CurrentDraftRevisionId,
-                        principalTable: "BookRevisions",
-                        principalColumn: "Id",
-                        onDelete: ReferentialAction.Restrict);
-                    table.ForeignKey(
-                        name: "FK_Books_BookRevisions_LivePublishedRevisionId",
-                        column: x => x.LivePublishedRevisionId,
-                        principalTable: "BookRevisions",
-                        principalColumn: "Id",
-                        onDelete: ReferentialAction.Restrict);
-                });
-
-            migrationBuilder.CreateTable(
-                name: "Chapters",
-                columns: table => new
-                {
-                    Id = table.Column<Guid>(type: "uuid", nullable: false),
-                    BookRevisionId = table.Column<Guid>(type: "uuid", nullable: false),
-                    Title = table.Column<string>(type: "character varying(255)", maxLength: 255, nullable: false),
-                    MarkdownContent = table.Column<string>(type: "text", nullable: false),
-                    SortOrder = table.Column<int>(type: "integer", nullable: false)
-                },
-                constraints: table =>
-                {
-                    table.PrimaryKey("PK_Chapters", x => x.Id);
-                    table.ForeignKey(
-                        name: "FK_Chapters_BookRevisions_BookRevisionId",
-                        column: x => x.BookRevisionId,
-                        principalTable: "BookRevisions",
-                        principalColumn: "Id",
-                        onDelete: ReferentialAction.Cascade);
-                });
-
-            migrationBuilder.CreateIndex(
-                name: "IX_BookRevisions_BookId",
-                table: "BookRevisions",
-                column: "BookId");
-
-            migrationBuilder.CreateIndex(
-                name: "IX_Books_CurrentDraftRevisionId",
-                table: "Books",
-                column: "CurrentDraftRevisionId");
-
-            migrationBuilder.CreateIndex(
-                name: "IX_Books_LivePublishedRevisionId",
-                table: "Books",
-                column: "LivePublishedRevisionId");
-
-            migrationBuilder.CreateIndex(
-                name: "IX_Books_TenantId",
-                table: "Books",
-                column: "TenantId");
-
-            migrationBuilder.CreateIndex(
-                name: "IX_Books_UserId",
-                table: "Books",
-                column: "UserId");
-
-            migrationBuilder.CreateIndex(
-                name: "IX_Chapters_BookRevisionId",
-                table: "Chapters",
-                column: "BookRevisionId");
-
-            migrationBuilder.AddForeignKey(
-                name: "FK_BookRevisions_Books_BookId",
-                table: "BookRevisions",
-                column: "BookId",
-                principalTable: "Books",
-                principalColumn: "Id",
-                onDelete: ReferentialAction.Cascade);
-        }
-
-        /// <inheritdoc />
-        protected override void Down(MigrationBuilder migrationBuilder)
-        {
-            migrationBuilder.DropForeignKey(
-                name: "FK_BookRevisions_Books_BookId",
-                table: "BookRevisions");
-
-            migrationBuilder.DropTable(
-                name: "Chapters");
-
-            migrationBuilder.DropTable(
-                name: "Books");
-
-            migrationBuilder.DropTable(
-                name: "BookRevisions");
-        }
-    }
-}

src/NexusReader.Data/Migrations/AppDbContextModelSnapshot.cs

@@ -5,6 +5,7 @@ using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 using NexusReader.Data.Persistence;
 using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using Pgvector;
 
 #nullable disable
 
@@ -20,6 +21,7 @@ namespace NexusReader.Data.Migrations
                 .HasAnnotation("ProductVersion", "10.0.7")
                 .HasAnnotation("Relational:MaxIdentifierLength", 63);
 
+            NpgsqlModelBuilderExtensions.HasPostgresExtension(modelBuilder, "vector");
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
             modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
@@ -172,103 +174,6 @@ namespace NexusReader.Data.Migrations
                     b.ToTable("Authors");
                 });
 
-            modelBuilder.Entity("NexusReader.Domain.Entities.Book", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid?>("CurrentDraftRevisionId")
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid?>("LivePublishedRevisionId")
-                        .HasColumnType("uuid");
-
-                    b.Property<string>("TenantId")
-                        .IsRequired()
-                        .HasMaxLength(128)
-                        .HasColumnType("character varying(128)");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.Property<string>("UserId")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("CurrentDraftRevisionId");
-
-                    b.HasIndex("LivePublishedRevisionId");
-
-                    b.HasIndex("TenantId");
-
-                    b.HasIndex("UserId");
-
-                    b.ToTable("Books");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.BookRevision", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid>("BookId")
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("CreatedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<bool>("IsPublished")
-                        .HasColumnType("boolean");
-
-                    b.Property<DateTime?>("PublishedAt")
-                        .HasColumnType("timestamp with time zone");
-
-                    b.Property<string>("VersionString")
-                        .IsRequired()
-                        .HasMaxLength(100)
-                        .HasColumnType("character varying(100)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("BookId");
-
-                    b.ToTable("BookRevisions");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Chapter", b =>
-                {
-                    b.Property<Guid>("Id")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<Guid>("BookRevisionId")
-                        .HasColumnType("uuid");
-
-                    b.Property<string>("MarkdownContent")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<int>("SortOrder")
-                        .HasColumnType("integer");
-
-                    b.Property<string>("Title")
-                        .IsRequired()
-                        .HasMaxLength(255)
-                        .HasColumnType("character varying(255)");
-
-                    b.HasKey("Id");
-
-                    b.HasIndex("BookRevisionId");
-
-                    b.ToTable("Chapters");
-                });
-
             modelBuilder.Entity("NexusReader.Domain.Entities.Ebook", b =>
                 {
                     b.Property<Guid>("Id")
@@ -359,6 +264,9 @@ namespace NexusReader.Data.Migrations
                     b.Property<int>("Type")
                         .HasColumnType("integer");
 
+                    b.Property<Vector>("Vector")
+                        .HasColumnType("vector(768)");
+
                     b.Property<string>("Version")
                         .IsRequired()
                         .HasMaxLength(50)
@@ -480,11 +388,6 @@ namespace NexusReader.Data.Migrations
                         .HasMaxLength(128)
                         .HasColumnType("character varying(128)");
 
-                    b.Property<int>("ThemePreference")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("integer")
-                        .HasDefaultValue(0);
-
                     b.Property<bool>("TwoFactorEnabled")
                         .HasColumnType("boolean");
 
@@ -577,6 +480,9 @@ namespace NexusReader.Data.Migrations
                         .HasMaxLength(128)
                         .HasColumnType("character varying(128)");
 
+                    b.Property<Vector>("Vector")
+                        .HasColumnType("vector(1536)");
+
                     b.HasKey("ContentHash");
 
                     b.HasIndex("ContentHash")
@@ -711,53 +617,6 @@ namespace NexusReader.Data.Migrations
                         .IsRequired();
                 });
 
-            modelBuilder.Entity("NexusReader.Domain.Entities.Book", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.BookRevision", "CurrentDraftRevision")
-                        .WithMany()
-                        .HasForeignKey("CurrentDraftRevisionId")
-                        .OnDelete(DeleteBehavior.Restrict);
-
-                    b.HasOne("NexusReader.Domain.Entities.BookRevision", "LivePublishedRevision")
-                        .WithMany()
-                        .HasForeignKey("LivePublishedRevisionId")
-                        .OnDelete(DeleteBehavior.Restrict);
-
-                    b.HasOne("NexusReader.Domain.Entities.NexusUser", "User")
-                        .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("CurrentDraftRevision");
-
-                    b.Navigation("LivePublishedRevision");
-
-                    b.Navigation("User");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.BookRevision", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.Book", "Book")
-                        .WithMany("Revisions")
-                        .HasForeignKey("BookId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("Book");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.Chapter", b =>
-                {
-                    b.HasOne("NexusReader.Domain.Entities.BookRevision", "BookRevision")
-                        .WithMany("Chapters")
-                        .HasForeignKey("BookRevisionId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
-
-                    b.Navigation("BookRevision");
-                });
-
             modelBuilder.Entity("NexusReader.Domain.Entities.Ebook", b =>
                 {
                     b.HasOne("NexusReader.Domain.Entities.Author", "Author")
@@ -833,16 +692,6 @@ namespace NexusReader.Data.Migrations
                     b.Navigation("Ebooks");
                 });
 
-            modelBuilder.Entity("NexusReader.Domain.Entities.Book", b =>
-                {
-                    b.Navigation("Revisions");
-                });
-
-            modelBuilder.Entity("NexusReader.Domain.Entities.BookRevision", b =>
-                {
-                    b.Navigation("Chapters");
-                });
-
             modelBuilder.Entity("NexusReader.Domain.Entities.KnowledgeUnit", b =>
                 {
                     b.Navigation("IncomingLinks");

src/NexusReader.Data/Persistence/AppDbContext.cs

@@ -1,7 +1,6 @@
 using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore;
 using NexusReader.Domain.Entities;
-using NexusReader.Domain.Enums;
 
 namespace NexusReader.Data.Persistence;
 
@@ -25,9 +24,6 @@ public class AppDbContext : IdentityDbContext<NexusUser>
     public DbSet<QuizResult> QuizResults => Set<QuizResult>();
     public DbSet<SubscriptionPlan> SubscriptionPlans => Set<SubscriptionPlan>();
     public DbSet<Author> Authors => Set<Author>();
-    public DbSet<Book> Books => Set<Book>();
-    public DbSet<BookRevision> BookRevisions => Set<BookRevision>();
-    public DbSet<Chapter> Chapters => Set<Chapter>();
 
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
@@ -47,10 +43,6 @@ public class AppDbContext : IdentityDbContext<NexusUser>
             // Note: DefaultValue for int is 1 (which corresponds to 'Free' in our seed)
             entity.Property(u => u.SubscriptionPlanId)
                 .HasDefaultValue(1);
-
-            entity.Property(u => u.ThemePreference)
-                .HasConversion<int>()
-                .HasDefaultValue(ThemeMode.System);
         });
 
         modelBuilder.Entity<SubscriptionPlan>(entity =>
@@ -117,48 +109,6 @@ public class AppDbContext : IdentityDbContext<NexusUser>
             entity.HasIndex(e => e.TenantId);
         });
 
-        modelBuilder.Entity<Book>(entity =>
-        {
-            entity.HasKey(b => b.Id);
-            entity.HasIndex(b => b.TenantId);
-            entity.HasIndex(b => b.UserId);
-
-            entity.HasOne(e => e.User)
-                .WithMany()
-                .HasForeignKey(e => e.UserId)
-                .OnDelete(DeleteBehavior.Cascade);
-
-            entity.HasMany(b => b.Revisions)
-                .WithOne(r => r.Book)
-                .HasForeignKey(r => r.BookId)
-                .OnDelete(DeleteBehavior.Cascade);
-
-            entity.HasOne(b => b.CurrentDraftRevision)
-                .WithMany()
-                .HasForeignKey(b => b.CurrentDraftRevisionId)
-                .OnDelete(DeleteBehavior.Restrict);
-
-            entity.HasOne(b => b.LivePublishedRevision)
-                .WithMany()
-                .HasForeignKey(b => b.LivePublishedRevisionId)
-                .OnDelete(DeleteBehavior.Restrict);
-        });
-
-        modelBuilder.Entity<BookRevision>(entity =>
-        {
-            entity.HasKey(r => r.Id);
-
-            entity.HasMany(r => r.Chapters)
-                .WithOne(c => c.BookRevision)
-                .HasForeignKey(c => c.BookRevisionId)
-                .OnDelete(DeleteBehavior.Cascade);
-        });
-
-        modelBuilder.Entity<Chapter>(entity =>
-        {
-            entity.HasKey(c => c.Id);
-        });
-
         // Seed Subscription Plans with deterministic IDs
         modelBuilder.Entity<SubscriptionPlan>().HasData(
             new SubscriptionPlan { Id = 1, PlanName = SubscriptionPlan.FreeName, AITokenLimit = 5000, IsUnlimitedTokens = false, MonthlyPrice = 0m, StripeProductId = "prod_Free789" },

src/NexusReader.Data/Persistence/DbInitializer.cs

@@ -136,72 +136,6 @@ public static class DbInitializer
             {
                 Console.WriteLine("[Seeder] Admin user already exists.");
             }
-
-            // Seed Sample Authored Book for Creator Dashboard
-            var activeAdmin = await dbContext.Users.FirstOrDefaultAsync(u => u.NormalizedEmail == normalizedEmail);
-            if (activeAdmin != null)
-            {
-                if (!dbContext.Books.Any(b => b.UserId == activeAdmin.Id))
-                {
-                    var sampleBookId = Guid.NewGuid();
-                    var sampleBook = new Book
-                    {
-                        Id = sampleBookId,
-                        Title = "Przewodnik po platformie Nexus",
-                        UserId = activeAdmin.Id,
-                        TenantId = activeAdmin.TenantId ?? "global"
-                    };
-                    dbContext.Books.Add(sampleBook);
-                    await dbContext.SaveChangesAsync();
-
-                    var sampleRevisionId = Guid.NewGuid();
-                    var sampleRevision = new BookRevision
-                    {
-                        Id = sampleRevisionId,
-                        BookId = sampleBookId,
-                        VersionString = "Working Draft",
-                        IsPublished = false,
-                        CreatedAt = DateTime.UtcNow
-                    };
-                    dbContext.BookRevisions.Add(sampleRevision);
-                    await dbContext.SaveChangesAsync();
-
-                    var sampleChapter1 = new Chapter
-                    {
-                        Id = Guid.NewGuid(),
-                        BookRevisionId = sampleRevisionId,
-                        Title = "Rozdział 1: Wprowadzenie do Zen Mode",
-                        MarkdownContent = @"# Zen Mode Editor
-
-Welcome to your dedicated workspace. This premium panel supports Notion-like WYSIWYG editing.
-
-## Features:
-- **Zero Distraction**: Simple elevation and border framing.
-- **GFM Tables**: Consistent cell padding and hover striping.
-- **Clean Code Blocks**: Pre-rendered base64 font-loaded code-preview blocks.",
-                        SortOrder = 1
-                    };
-
-                    var sampleChapter2 = new Chapter
-                    {
-                        Id = Guid.NewGuid(),
-                        BookRevisionId = sampleRevisionId,
-                        Title = "Rozdział 2: Zabezpieczenia i XSS",
-                        MarkdownContent = @"# Security Overview
-
-This module provides Magic Number image signature checking and HtmlSanitizer filters.",
-                        SortOrder = 2
-                    };
-
-                    dbContext.Chapters.Add(sampleChapter1);
-                    dbContext.Chapters.Add(sampleChapter2);
-                    await dbContext.SaveChangesAsync();
-
-                    sampleBook.CurrentDraftRevisionId = sampleRevisionId;
-                    await dbContext.SaveChangesAsync();
-                    Console.WriteLine("[Seeder] Sample authored book and chapters seeded for admin.");
-                }
-            }
         }
         catch (Exception ex)
         {

src/NexusReader.Domain/Entities/Book.cs

@@ -1,39 +0,0 @@
-using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace NexusReader.Domain.Entities;
-
-/// <summary>
-/// Represents a Book metadata entry that references its decoupled revisions.
-/// </summary>
-public class Book
-{
-    [Key]
-    public Guid Id { get; set; } = Guid.NewGuid();
-
-    [Required]
-    [MaxLength(255)]
-    public string Title { get; set; } = string.Empty;
-
-    [Required]
-    [MaxLength(128)]
-    public string TenantId { get; set; } = "global";
-
-    [Required]
-    public string UserId { get; set; } = string.Empty;
-
-    [ForeignKey(nameof(UserId))]
-    public virtual NexusUser? User { get; set; }
-
-    public Guid? CurrentDraftRevisionId { get; set; }
-
-    [ForeignKey(nameof(CurrentDraftRevisionId))]
-    public virtual BookRevision? CurrentDraftRevision { get; set; }
-
-    public Guid? LivePublishedRevisionId { get; set; }
-
-    [ForeignKey(nameof(LivePublishedRevisionId))]
-    public virtual BookRevision? LivePublishedRevision { get; set; }
-
-    public virtual ICollection<BookRevision> Revisions { get; set; } = new List<BookRevision>();
-}

src/NexusReader.Domain/Entities/BookRevision.cs

@@ -1,31 +0,0 @@
-using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace NexusReader.Domain.Entities;
-
-/// <summary>
-/// Encapsulates a snapshot or draft version of a Book's chapters.
-/// </summary>
-public class BookRevision
-{
-    [Key]
-    public Guid Id { get; set; } = Guid.NewGuid();
-
-    [Required]
-    public Guid BookId { get; set; }
-
-    [ForeignKey(nameof(BookId))]
-    public virtual Book Book { get; set; } = null!;
-
-    [Required]
-    [MaxLength(100)]
-    public string VersionString { get; set; } = "Working Draft";
-
-    public bool IsPublished { get; set; } = false;
-
-    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
-
-    public DateTime? PublishedAt { get; set; }
-
-    public virtual ICollection<Chapter> Chapters { get; set; } = new List<Chapter>();
-}

src/NexusReader.Domain/Entities/Chapter.cs

@@ -1,29 +0,0 @@
-using System.ComponentModel.DataAnnotations;
-using System.ComponentModel.DataAnnotations.Schema;
-
-namespace NexusReader.Domain.Entities;
-
-/// <summary>
-/// Represents a chapter belonging strictly to a specific BookRevision.
-/// </summary>
-public class Chapter
-{
-    [Key]
-    public Guid Id { get; set; } = Guid.NewGuid();
-
-    [Required]
-    public Guid BookRevisionId { get; set; }
-
-    [ForeignKey(nameof(BookRevisionId))]
-    public virtual BookRevision BookRevision { get; set; } = null!;
-
-    [Required]
-    [MaxLength(255)]
-    public string Title { get; set; } = string.Empty;
-
-    [Required]
-    public string MarkdownContent { get; set; } = string.Empty;
-
-    [Required]
-    public int SortOrder { get; set; }
-}

src/NexusReader.Domain/Entities/NexusUser.cs

@@ -1,7 +1,6 @@
 using Microsoft.AspNetCore.Identity;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
-using NexusReader.Domain.Enums;
 
 namespace NexusReader.Domain.Entities;
 
@@ -66,9 +65,4 @@ public class NexusUser : IdentityUser
     /// Last read timestamp.
     /// </summary>
     public DateTime? LastReadAt { get; set; }
-
-    /// <summary>
-    /// User's visual theme preference.
-    /// </summary>
-    public ThemeMode ThemePreference { get; set; } = ThemeMode.System;
 }

src/NexusReader.Domain/Enums/ThemeMode.cs

@@ -1,8 +0,0 @@
-namespace NexusReader.Domain.Enums;
-
-public enum ThemeMode
-{
-    System = 0,
-    Dark = 1,
-    LightSepia = 2
-}

src/NexusReader.Domain/Exceptions/BookNotFoundException.cs

@@ -1,12 +0,0 @@
-namespace NexusReader.Domain.Exceptions;
-
-/// <summary>
-/// Custom domain exception thrown when a Book cannot be found by its ID.
-/// </summary>
-public class BookNotFoundException : Exception
-{
-    public BookNotFoundException(Guid bookId) 
-        : base($"Book with ID '{bookId}' was not found.")
-    {
-    }
-}

src/NexusReader.Infrastructure/Configuration/HtmlSanitizerSettings.cs

@@ -1,35 +0,0 @@
-using System.Collections.Generic;
-
-namespace NexusReader.Infrastructure.Configuration;
-
-/// <summary>
-/// Settings for configuring allowed tags, attributes, CSS properties, and schemes in HtmlSanitizerService.
-/// </summary>
-public class HtmlSanitizerSettings
-{
-    public const string SectionName = "HtmlSanitizer";
-
-    /// <summary>
-    /// Gets or sets the list of HTML tags that are allowed.
-    /// If null or empty, the default allowed tags list is used.
-    /// </summary>
-    public List<string>? AllowedTags { get; set; }
-
-    /// <summary>
-    /// Gets or sets the list of HTML attributes that are allowed.
-    /// If null or empty, the default allowed attributes list is used.
-    /// </summary>
-    public List<string>? AllowedAttributes { get; set; }
-
-    /// <summary>
-    /// Gets or sets the list of CSS properties that are allowed.
-    /// If null or empty, the default allowed CSS properties list is used.
-    /// </summary>
-    public List<string>? AllowedCssProperties { get; set; }
-
-    /// <summary>
-    /// Gets or sets the list of URI schemes that are allowed (e.g. "http", "https").
-    /// If null or empty, the default allowed schemes list is used.
-    /// </summary>
-    public List<string>? AllowedSchemes { get; set; }
-}

src/NexusReader.Infrastructure/DependencyInjection.cs

@@ -55,15 +55,7 @@ public static class DependencyInjection
 
         // Qdrant Client registration
         var qdrantUrl = configuration.GetConnectionString("QdrantConnection") ?? "http://localhost:6334";
-        var qdrantApiKey = configuration["Qdrant:ApiKey"];
+        services.AddSingleton<QdrantClient>(sp => new QdrantClient(new Uri(qdrantUrl)));
-        services.AddSingleton<QdrantClient>(sp => 
-        {
-            if (!string.IsNullOrEmpty(qdrantApiKey))
-            {
-                return new QdrantClient(new Uri(qdrantUrl), apiKey: qdrantApiKey);
-            }
-            return new QdrantClient(new Uri(qdrantUrl));
-        });
 
         // Neo4j Driver registration (supports optional authentication)
         var neo4jUrl = configuration.GetConnectionString("Neo4jConnection") ?? "bolt://localhost:7687";
@@ -86,7 +78,6 @@ public static class DependencyInjection
         services.Configure<AiSettings>(configuration.GetSection(AiSettings.SectionName));
         services.Configure<StripeSettings>(configuration.GetSection(StripeSettings.SectionName));
         services.Configure<RagMonetizationOptions>(configuration.GetSection(RagMonetizationOptions.SectionName));
-        services.Configure<HtmlSanitizerSettings>(configuration.GetSection(HtmlSanitizerSettings.SectionName));
         var aiSettings = configuration.GetSection(AiSettings.SectionName).Get<AiSettings>() ?? new AiSettings();
 
         if (string.IsNullOrWhiteSpace(aiSettings.ApiKey) || aiSettings.ApiKey == "PLACEHOLDER")
@@ -133,8 +124,6 @@ public static class DependencyInjection
         // Fix #4: Scoped instead of Singleton — BookStorageService uses path resolution
         // that is environment-specific and incompatible with Singleton lifetime in MAUI.
         services.AddScoped<IBookStorageService, BookStorageService>();
-        services.AddScoped<IStorageService, LocalStorageService>();
-        services.AddSingleton<ISanitizerService, HtmlSanitizerService>();
 
         // Fix #1: Ebook repository (scoped, matches AppDbContext lifetime)
         services.AddScoped<IEbookRepository, EbookRepository>();

src/NexusReader.Infrastructure/NexusReader.Infrastructure.csproj

@@ -28,8 +28,6 @@
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" />
     <PackageReference Include="Polly" />
     <PackageReference Include="Polly.Extensions.Http" />
-    <PackageReference Include="HtmlSanitizer" />
-    <PackageReference Include="Markdig" />
     <PackageReference Include="Qdrant.Client" />
     <PackageReference Include="Stripe.net" />
     <PackageReference Include="VersOne.Epub" />

src/NexusReader.Infrastructure/Persistence/VectorSearchStore.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -95,21 +94,12 @@ internal sealed class VectorSearchStore : IVectorSearchStore
 
     private async Task<float[]> GenerateEmbeddingAsync(string text, CancellationToken cancellationToken)
     {
-        if (string.IsNullOrWhiteSpace(text))
-        {
-            _logger.LogWarning("[VectorSearchStore] Attempted to generate embedding from empty text. Returning zero vector.");
-            return Array.Empty<float>();
-        }
-
-        var sw = Stopwatch.StartNew();
         var response = await _retryPipeline.ExecuteAsync(async ct => 
             await _embeddingGenerator.GenerateAsync(
                 new[] { text }, 
                 new EmbeddingGenerationOptions { Dimensions = 768 }, 
                 cancellationToken: ct), cancellationToken);
-        sw.Stop();
 
-        _logger.LogDebug("[VectorSearchStore] Embedding generated in {ElapsedMs}ms for text of {Length} chars.", sw.ElapsedMilliseconds, text.Length);
         return response.First().Vector.ToArray();
     }
 
@@ -142,17 +132,10 @@ internal sealed class VectorSearchStore : IVectorSearchStore
 
     private async Task<List<VectorChunk>> ExecuteSearchAsync(float[] queryVector, Qdrant.Client.Grpc.Filter filter, int limit, CancellationToken cancellationToken)
     {
-        if (queryVector.Length == 0)
-        {
-            _logger.LogWarning("[VectorSearchStore] Empty query vector — skipping Qdrant search.");
-            return new List<VectorChunk>();
-        }
-
         try
         {
             await EnsureCollectionExistsAsync("knowledge_units", cancellationToken);
 
-            var sw = Stopwatch.StartNew();
             var response = await _qdrantClient.SearchAsync(
                 collectionName: "knowledge_units",
                 vector: queryVector,
@@ -160,8 +143,6 @@ internal sealed class VectorSearchStore : IVectorSearchStore
                 limit: (ulong)limit,
                 cancellationToken: cancellationToken
             );
-            sw.Stop();
-            _logger.LogInformation("[VectorSearchStore] Qdrant search returned {Count} results in {ElapsedMs}ms.", response.Count, sw.ElapsedMilliseconds);
 
             return response.Select(point => 
             {
@@ -188,7 +169,6 @@ internal sealed class VectorSearchStore : IVectorSearchStore
             var exists = await _qdrantClient.CollectionExistsAsync(collectionName, cancellationToken);
             if (!exists)
             {
-                _logger.LogInformation("[VectorSearchStore] Collection '{CollectionName}' does not exist — creating.", collectionName);
                 await _qdrantClient.CreateCollectionAsync(
                     collectionName: collectionName,
                     vectorsConfig: new Qdrant.Client.Grpc.VectorParams
@@ -198,13 +178,11 @@ internal sealed class VectorSearchStore : IVectorSearchStore
                     },
                     cancellationToken: cancellationToken
                 );
-                _logger.LogInformation("[VectorSearchStore] Collection '{CollectionName}' created successfully.", collectionName);
             }
         }
-        catch (Exception ex)
+        catch (Exception)
         {
-            // Log concurrent creation conflicts (e.g., AlreadyExists gRPC status) but do not propagate.
+            // Ignore concurrent creation conflicts in multi-threaded/concurrent flows
-            _logger.LogWarning(ex, "[VectorSearchStore] Non-fatal error while ensuring collection '{CollectionName}' exists. Possible concurrent creation.", collectionName);
         }
     }
 }

src/NexusReader.Infrastructure/Queries/GetContextualRecommendationsQueryHandler.cs

@@ -6,7 +6,6 @@ using System.Threading;
 using System.Threading.Tasks;
 using FluentResults;
 using MediatR;
-using Microsoft.Extensions.Logging;
 using NexusReader.Application.Abstractions.Persistence;
 using NexusReader.Application.Queries.Recommendations;
 
@@ -14,31 +13,24 @@ namespace NexusReader.Infrastructure.Queries;
 
 /// <summary>
 /// Handles <see cref="GetContextualRecommendationsQuery"/> by discovering the active reading state,
-/// performing semantic search using <see cref="IVectorSearchStore"/> with book exclusion, and mapping upsells.
+/// performing semantic search using IVectorSearchStore with book exclusion, and mapping upsells.
 /// </summary>
 public class GetContextualRecommendationsQueryHandler : IRequestHandler<GetContextualRecommendationsQuery, Result<ContextualRecommendationResponse>>
 {
     private readonly IUserReadingStateStore _readingStateStore;
     private readonly IUserLibraryStore _libraryStore;
     private readonly IVectorSearchStore _vectorSearchStore;
-    private readonly ILogger<GetContextualRecommendationsQueryHandler> _logger;
 
-    /// <summary>
-    /// Initializes a new instance of <see cref="GetContextualRecommendationsQueryHandler"/>.
-    /// </summary>
     public GetContextualRecommendationsQueryHandler(
         IUserReadingStateStore readingStateStore,
         IUserLibraryStore libraryStore,
-        IVectorSearchStore vectorSearchStore,
+        IVectorSearchStore vectorSearchStore)
-        ILogger<GetContextualRecommendationsQueryHandler> logger)
     {
         _readingStateStore = readingStateStore;
         _libraryStore = libraryStore;
         _vectorSearchStore = vectorSearchStore;
-        _logger = logger;
     }
 
-    /// <inheritdoc />
     public async Task<Result<ContextualRecommendationResponse>> Handle(GetContextualRecommendationsQuery request, CancellationToken cancellationToken)
     {
         if (string.IsNullOrEmpty(request.UserId))
@@ -52,7 +44,7 @@ public class GetContextualRecommendationsQueryHandler : IRequestHandler<GetConte
             var (ebookId, chapterId, tenantId) = await _readingStateStore.GetActiveReadingStateAsync(request.UserId, cancellationToken);
             if (ebookId == null)
             {
-                _logger.LogInformation("[Recommendations] No active reading state for user {UserId}. Returning empty list.", request.UserId);
+                // Fallback: brand-new user with no reading history, return empty recommendations list safely
                 return Result.Ok(new ContextualRecommendationResponse(new List<RecommendationDto>()));
             }
 
@@ -63,17 +55,14 @@ public class GetContextualRecommendationsQueryHandler : IRequestHandler<GetConte
                 chapterContent = await _readingStateStore.GetChapterContentAsync(chapterId, cancellationToken);
             }
 
-            // Guard: empty chapter content cannot produce a meaningful embedding
+            // Fallback: if no active chapter or content, try retrieving any chapter content from this book
-            if (string.IsNullOrWhiteSpace(chapterContent))
+            if (string.IsNullOrEmpty(chapterContent))
             {
-                _logger.LogWarning("[Recommendations] Chapter content is empty for chapterId={ChapterId}. Returning empty list.", chapterId);
                 return Result.Ok(new ContextualRecommendationResponse(new List<RecommendationDto>()));
             }
 
             // Step 3: Perform similarity search using IVectorSearchStore
             var resolvedTenantId = tenantId ?? "global";
-            _logger.LogDebug("[Recommendations] Performing vector search for user {UserId}, book {EbookId}, tenant {TenantId}.", request.UserId, ebookId, resolvedTenantId);
-
             var searchResults = await _vectorSearchStore.SearchGlobalExcludeAsync(
                 chapterContent,
                 resolvedTenantId,
@@ -114,10 +103,7 @@ public class GetContextualRecommendationsQueryHandler : IRequestHandler<GetConte
                                 chapterTitle = labelProp.GetString() ?? chapterTitle;
                             }
                         }
-                        catch (JsonException jsonEx)
+                        catch { }
-                        {
-                            _logger.LogWarning(jsonEx, "[Recommendations] Failed to parse metadataJson for chunk with ebookId={EbookId}.", targetEbookIdStr);
-                        }
                     }
                 }
 
@@ -133,12 +119,10 @@ public class GetContextualRecommendationsQueryHandler : IRequestHandler<GetConte
                 ));
             }
 
-            _logger.LogInformation("[Recommendations] Returning {Count} recommendations for user {UserId}.", recommendations.Count, request.UserId);
             return Result.Ok(new ContextualRecommendationResponse(recommendations));
         }
         catch (Exception ex)
         {
-            _logger.LogError(ex, "[Recommendations] Downstream vector database or state query failed for user {UserId}.", request.UserId);
             return Result.Fail(new Error("Downstream vector database or state query failed.").CausedBy(ex));
         }
     }

src/NexusReader.Infrastructure/Services/HtmlSanitizerService.cs

@@ -1,76 +0,0 @@
-using Ganss.Xss;
-using Microsoft.Extensions.Options;
-using NexusReader.Application.Abstractions.Services;
-using NexusReader.Infrastructure.Configuration;
-using Markdig;
-
-namespace NexusReader.Infrastructure.Services;
-
-/// <summary>
-/// Infrastructure implementation of ISanitizerService using the Ganss.Xss HtmlSanitizer library.
-/// </summary>
-public class HtmlSanitizerService : ISanitizerService
-{
-    private readonly HtmlSanitizer _sanitizer;
-    private readonly MarkdownPipeline _pipeline;
-
-    public HtmlSanitizerService(IOptions<HtmlSanitizerSettings>? options = null)
-    {
-        _sanitizer = new HtmlSanitizer();
-        _pipeline = new MarkdownPipelineBuilder().UseAdvancedExtensions().Build();
-        
-        if (options?.Value != null)
-        {
-            var settings = options.Value;
-            
-            if (settings.AllowedTags != null && settings.AllowedTags.Count > 0)
-            {
-                _sanitizer.AllowedTags.Clear();
-                foreach (var tag in settings.AllowedTags)
-                {
-                    _sanitizer.AllowedTags.Add(tag);
-                }
-            }
-
-            if (settings.AllowedAttributes != null && settings.AllowedAttributes.Count > 0)
-            {
-                _sanitizer.AllowedAttributes.Clear();
-                foreach (var attr in settings.AllowedAttributes)
-                {
-                    _sanitizer.AllowedAttributes.Add(attr);
-                }
-            }
-
-            if (settings.AllowedCssProperties != null && settings.AllowedCssProperties.Count > 0)
-            {
-                _sanitizer.AllowedCssProperties.Clear();
-                foreach (var prop in settings.AllowedCssProperties)
-                {
-                    _sanitizer.AllowedCssProperties.Add(prop);
-                }
-            }
-
-            if (settings.AllowedSchemes != null && settings.AllowedSchemes.Count > 0)
-            {
-                _sanitizer.AllowedSchemes.Clear();
-                foreach (var scheme in settings.AllowedSchemes)
-                {
-                    _sanitizer.AllowedSchemes.Add(scheme);
-                }
-            }
-        }
-    }
-
-    public string Sanitize(string input)
-    {
-        if (string.IsNullOrEmpty(input))
-        {
-            return input;
-        }
-
-        // Translate raw Markdown input to HTML strictly before running HtmlSanitizer
-        var html = Markdown.ToHtml(input, _pipeline);
-
-        return _sanitizer.Sanitize(html).Trim();
-    }
-}

src/NexusReader.Infrastructure/Services/LocalStorageService.cs

@@ -1,58 +0,0 @@
-using Microsoft.AspNetCore.Hosting;
-using NexusReader.Application.Abstractions.Services;
-
-namespace NexusReader.Infrastructure.Services;
-
-/// <summary>
-/// Infrastructure implementation of general storage utilizing local filesystem.
-/// Files are saved in wwwroot/uploads/media.
-/// </summary>
-public class LocalStorageService : IStorageService
-{
-    private readonly IWebHostEnvironment _environment;
-
-    public LocalStorageService(IWebHostEnvironment environment)
-    {
-        _environment = environment;
-    }
-
-    public async Task<string> UploadFileAsync(byte[] fileBytes, string fileName, string contentType)
-    {
-        using var stream = new MemoryStream(fileBytes);
-        return await UploadFileAsync(stream, fileName, contentType);
-    }
-
-    public async Task<string> UploadFileAsync(Stream fileStream, string fileName, string contentType)
-    {
-        var mediaFolder = Path.Combine(_environment.WebRootPath, "uploads");
-        var resolvedMediaFolder = Path.GetFullPath(mediaFolder);
-        var folderWithSeparator = resolvedMediaFolder.EndsWith(Path.DirectorySeparatorChar)
-            ? resolvedMediaFolder
-            : resolvedMediaFolder + Path.DirectorySeparatorChar;
-        
-        if (!Directory.Exists(resolvedMediaFolder))
-        {
-            Directory.CreateDirectory(resolvedMediaFolder);
-        }
-
-        // Clean file name to prevent path traversal issues
-        var safeFileName = Path.GetFileName(fileName);
-        var uniqueFileName = $"{Guid.NewGuid()}_{safeFileName}";
-        var filePath = Path.Combine(resolvedMediaFolder, uniqueFileName);
-        
-        // Guard against path traversal
-        var fullPath = Path.GetFullPath(filePath);
-        if (!fullPath.StartsWith(folderWithSeparator, StringComparison.OrdinalIgnoreCase))
-        {
-            throw new InvalidOperationException("Path traversal detected.");
-        }
-
-        using (var outputStream = new FileStream(fullPath, FileMode.Create))
-        {
-            await fileStream.CopyToAsync(outputStream);
-        }
-
-        // Return the public web-relative URL
-        return $"/uploads/{uniqueFileName}";
-    }
-}

src/NexusReader.Maui/MauiProgram.cs

@@ -8,7 +8,6 @@ using NexusReader.Application;
 using MediatR;
 using NexusReader.Maui.Infrastructure.Logging;
 using NexusReader.Maui.Infrastructure.Identity;
-using NexusReader.Maui.Services;
 
 namespace NexusReader.Maui;
 
@@ -45,7 +44,7 @@ public static class MauiProgram
 
 			// Minimal Infrastructure
 			builder.Services.AddSingleton<IPlatformService, MauiPlatformService>();
-			builder.Services.AddSingleton<INativeStorageService, NexusReader.Infrastructure.Mobile.Services.MauiStorageService>();
+			builder.Services.AddSingleton<INativeStorageService, MauiStorageService>();
 			
 			// Minimal Identity (Safe Mode)
 			builder.Services.AddScoped<NexusAuthenticationStateProvider>();
@@ -68,8 +67,7 @@ public static class MauiProgram
 			var featureSettings = builder.Configuration.GetSection("Features").Get<FeatureSettings>() ?? new FeatureSettings();
 			builder.Services.AddSingleton(featureSettings);
 
-			builder.Services.AddSingleton<IUserPreferenceStore, MauiUserPreferenceStore>();
+			builder.Services.AddScoped<IThemeService, ThemeService>();
-			builder.Services.AddSingleton<IThemeService, ThemeService>();
 			builder.Services.AddScoped<IFocusModeService, FocusModeService>();
 			builder.Services.AddScoped<IQuizStateService, QuizStateService>();
 			builder.Services.AddScoped<IReaderNavigationService, ReaderNavigationService>();

src/NexusReader.Maui/Services/MauiUserPreferenceStore.cs

@@ -1,61 +0,0 @@
-using System.Net.Http;
-using System.Net.Http.Json;
-using FluentResults;
-using NexusReader.Application.DTOs.User;
-using NexusReader.Domain.Enums;
-using NexusReader.Application.Abstractions.Services;
-
-namespace NexusReader.Maui.Services;
-
-public class MauiUserPreferenceStore : IUserPreferenceStore
-{
-    private readonly IHttpClientFactory _httpClientFactory;
-
-    public MauiUserPreferenceStore(IHttpClientFactory httpClientFactory)
-    {
-        _httpClientFactory = httpClientFactory;
-    }
-
-    private HttpClient CreateClient() => _httpClientFactory.CreateClient("NexusAPI");
-
-    public async Task<Result> SaveThemePreferenceAsync(ThemeMode mode)
-    {
-        try
-        {
-            var client = CreateClient();
-            var response = await client.PostAsJsonAsync("identity/theme", new UpdateThemeRequest(mode));
-            if (response.IsSuccessStatusCode)
-            {
-                return Result.Ok();
-            }
-            
-            var error = await response.Content.ReadAsStringAsync();
-            return Result.Fail($"Failed to save cloud theme preference on mobile: {error}");
-        }
-        catch (Exception ex)
-        {
-            return Result.Fail(new Error("Network error saving mobile theme preference to cloud.").CausedBy(ex));
-        }
-    }
-
-    public async Task<Result<ThemeMode>> GetThemePreferenceAsync()
-    {
-        try
-        {
-            var client = CreateClient();
-            var response = await client.GetAsync("identity/profile");
-            if (response.IsSuccessStatusCode)
-            {
-                var profile = await response.Content.ReadFromJsonAsync<UserProfileDto>();
-                return profile != null 
-                    ? Result.Ok(profile.ThemePreference) 
-                    : Result.Fail("Failed to deserialize mobile profile response.");
-            }
-            return Result.Fail($"Failed to fetch theme preference from cloud on mobile: {response.ReasonPhrase}");
-        }
-        catch (Exception ex)
-        {
-            return Result.Fail(new Error("Network error retrieving theme preference on mobile.").CausedBy(ex));
-        }
-    }
-}

src/NexusReader.Maui/wwwroot/index.html

@@ -9,29 +9,14 @@
     <link rel="icon" type="image/png" href="favicon.png" />
     <script>
         (function () {
-            try {
+            const savedTheme = localStorage.getItem('theme');
-                var themeMode = localStorage.getItem('theme-mode');
+            const systemPrefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
-                var savedTheme = localStorage.getItem('theme');
+            const isLight = savedTheme === 'light' || (!savedTheme && !systemPrefersDark);
-                var isLight = false;
-                
-                if (themeMode === '2' || savedTheme === 'light') {
-                    isLight = true;
-                } else if (themeMode === '1' || savedTheme === 'dark') {
-                    isLight = false;
-                } else {
-                    isLight = window.matchMedia && window.matchMedia('(prefers-color-scheme: light)').matches;
-                }
-                
             if (isLight) {
                 document.documentElement.classList.add('theme-light');
-                    document.documentElement.classList.remove('theme-dark');
             } else {
-                    document.documentElement.classList.add('theme-dark');
                 document.documentElement.classList.remove('theme-light');
             }
-            } catch (e) {
-                // Fail silently
-            }
         })();
     </script>
 </head>

src/NexusReader.UI.Shared/Components/Atoms/NexusIcon.razor

@@ -101,11 +101,6 @@
                     <line x1="5" y1="12" x2="19" y2="12" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
                     <polyline points="12 5 19 12 12 19" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
             break;
-        case "edit":
-        case "edit-2":
-                    <path d="M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
-                    <path d="M18.5 2.5a2.121 2.121 0 1 1 3 3L12 15l-4 1 1-4 9.5-9.5z" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
-            break;
         case "log-out":
                     <path d="M9 21H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h4M16 17l5-5-5-5M21 12H9" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
             break;

src/NexusReader.UI.Shared/Components/MarkdownEditor.razor

@@ -1,559 +0,0 @@
-@using Microsoft.JSInterop
-@implements IAsyncDisposable
-@inject IJSRuntime JS
-@inject HttpClient Http
-@inject NexusReader.Application.Abstractions.Services.INativeStorageService StorageService
-
-<div class="markdown-editor-container" style="height: @Height; width: @Width;">
-    @if (_showRestorationBanner)
-    {
-        <div class="restoration-banner">
-            <span class="banner-text">You have unsaved changes from an interrupted session.</span>
-            <div class="banner-actions">
-                <button type="button" class="banner-btn restore-btn" @onclick="RestoreBackupAsync">Restore</button>
-                <button type="button" class="banner-btn dismiss-btn" @onclick="DismissBackupAsync">Dismiss</button>
-            </div>
-        </div>
-    }
-    else
-    {
-        <div @key="_editorRenderKey" id="@EditorId" class="milkdown-editor-wrapper"></div>
-
-        <div class="editor-footer">
-            <div class="status-indicator">
-                <span class="status-dot @StatusClass"></span>
-                <span class="status-text">@StatusText</span>
-            </div>
-            @if (ShowFetchButton)
-            {
-                <div class="editor-actions">
-                    <button type="button" @onclick="FetchContentAsync" class="nexus-btn">
-                        Fetch Markdown Content
-                    </button>
-                </div>
-            }
-        </div>
-    }
-</div>
-
-@code {
-    private string EditorId { get; set; } = $"milkdown-editor-{Guid.NewGuid():N}";
-    private Guid _editorRenderKey = Guid.NewGuid();
-    private readonly CancellationTokenSource _cts = new();
-    private IJSObjectReference? _module;
-    private DotNetObjectReference<MarkdownEditor>? _dotNetHelper;
-    private string? _lastInitializedEditorId;
-    private bool _disposed;
-
-    private enum SaveStatus
-    {
-        SavedToCloud,
-        Saving,
-        OfflineLocalBackup
-    }
-
-    private SaveStatus _status = SaveStatus.SavedToCloud;
-    private string _currentMarkdown = string.Empty;
-    private CancellationTokenSource? _debounceCts;
-    private readonly object _timerLock = new();
-
-    private bool _showRestorationBanner = false;
-    private NexusReader.Application.DTOs.Media.LocalBackupEnvelope? _pendingBackup;
-    private bool _hasRunStorageInit = false;
-    private bool _reinitializeEditor = false;
-
-    private string StatusClass => _status switch
-    {
-        SaveStatus.SavedToCloud => "saved",
-        SaveStatus.Saving => "saving",
-        SaveStatus.OfflineLocalBackup => "offline",
-        _ => "saved"
-    };
-
-    private string StatusText => _status switch
-    {
-        SaveStatus.SavedToCloud => "Saved to Cloud",
-        SaveStatus.Saving => "Saving...",
-        SaveStatus.OfflineLocalBackup => "Offline - Local Backup Only",
-        _ => "Saved to Cloud"
-    };
-
-    [Parameter]
-    public bool ShowFetchButton { get; set; } = true;
-
-    [Parameter]
-    public string InitialMarkdown { get; set; } = string.Empty;
-
-    [Parameter]
-    public EventCallback<string> OnSave { get; set; }
-
-    [Parameter]
-    public string Height { get; set; } = "500px";
-
-    [Parameter]
-    public string Width { get; set; } = "100%";
-
-    [Parameter]
-    public Guid ChapterId { get; set; } = Guid.Empty;
-
-    [Parameter]
-    public DateTime? ServerTimestamp { get; set; }
-
-    protected override async Task OnInitializedAsync()
-    {
-        await base.OnInitializedAsync();
-        // Sweep keys and check restoration on init
-        await RunStorageSweepAndRestorationCheckAsync();
-    }
-
-    private Guid _prevChapterId = Guid.Empty;
-
-    protected override async Task OnParametersSetAsync()
-    {
-        await base.OnParametersSetAsync();
-        if (ChapterId != Guid.Empty && ChapterId != _prevChapterId)
-        {
-            _prevChapterId = ChapterId;
-            _hasRunStorageInit = false;
-            
-            if (_module != null)
-            {
-                try
-                {
-                    await _module.InvokeVoidAsync("destroyEditor", EditorId);
-                }
-                catch (Exception ex)
-                {
-                    Console.WriteLine($"[MarkdownEditor] Error destroying old editor on chapter switch: {ex.Message}");
-                }
-            }
-
-            _reinitializeEditor = true;
-            EditorId = $"milkdown-editor-{Guid.NewGuid():N}";
-            _editorRenderKey = Guid.NewGuid();
-
-            await RunStorageSweepAndRestorationCheckAsync();
-        }
-    }
-
-    protected override async Task OnAfterRenderAsync(bool firstRender)
-    {
-        var shouldInit = (firstRender || _reinitializeEditor) && (EditorId != _lastInitializedEditorId);
-        if (shouldInit)
-        {
-            _reinitializeEditor = false;
-            _lastInitializedEditorId = EditorId; // Set immediately before any async yield to prevent concurrent triggers
-
-            if (firstRender)
-            {
-                _dotNetHelper = DotNetObjectReference.Create(this);
-                // Retry if deferred during prerendering OnInitializedAsync
-                await RunStorageSweepAndRestorationCheckAsync();
-            }
-
-            try
-            {
-                if (_module == null)
-                {
-                    _module = await JS.InvokeAsync<IJSObjectReference>(
-                        "import", 
-                        $"./_content/NexusReader.UI.Shared/js/milkdownWrapper.js?v={Guid.NewGuid():N}"
-                    );
-                }
-                await _module.InvokeVoidAsync("initEditor", EditorId, _dotNetHelper, InitialMarkdown);
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"[MarkdownEditor] Error initializing Milkdown editor: {ex.Message}");
-            }
-        }
-    }
-
-    private async Task RunStorageSweepAndRestorationCheckAsync()
-    {
-        if (_hasRunStorageInit) return;
-
-        try
-        {
-            _hasRunStorageInit = true;
-
-            // Import wrapper module if not already loaded to access helper
-            if (_module == null)
-            {
-                _module = await JS.InvokeAsync<IJSObjectReference>(
-                    "import", 
-                    $"./_content/NexusReader.UI.Shared/js/milkdownWrapper.js?v={Guid.NewGuid():N}"
-                );
-            }
-
-            // Sweep and filter backup keys defensively
-            var keys = await _module.InvokeAsync<List<string>>("getBackupKeys");
-            if (keys != null)
-            {
-                var now = DateTime.UtcNow;
-                foreach (var key in keys)
-                {
-                    // Strict defensive check before doing any JSON deserialization
-                    if (!key.StartsWith("nexus-bkp-")) continue;
-
-                    try
-                    {
-                        var backupResult = await StorageService.GetStringAsync(key);
-                        if (backupResult.IsSuccess && !string.IsNullOrEmpty(backupResult.Value))
-                        {
-                            var envelope = System.Text.Json.JsonSerializer.Deserialize<NexusReader.Application.DTOs.Media.LocalBackupEnvelope>(
-                                backupResult.Value, 
-                                NexusReader.Application.Common.AppJsonContext.Default.LocalBackupEnvelope
-                            );
-                            if (envelope != null)
-                            {
-                                // Remove expired backups
-                                if ((now - envelope.Timestamp).TotalDays > 7)
-                                {
-                                    await StorageService.RemoveAsync(key);
-                                    Console.WriteLine($"[MarkdownEditor] Boot-up Eviction: Deleted expired backup key {key}");
-                                }
-                            }
-                        }
-                    }
-                    catch (Exception ex)
-                    {
-                        Console.WriteLine($"[MarkdownEditor] Error sweeping key {key}: {ex.Message}");
-                    }
-                }
-            }
-
-            // Restoration guard for this specific Chapter ID
-            var currentBackupKey = $"nexus-bkp-{ChapterId}";
-            var currentBackupResult = await StorageService.GetStringAsync(currentBackupKey);
-            if (currentBackupResult.IsSuccess && !string.IsNullOrEmpty(currentBackupResult.Value))
-            {
-                var envelope = System.Text.Json.JsonSerializer.Deserialize<NexusReader.Application.DTOs.Media.LocalBackupEnvelope>(
-                    currentBackupResult.Value, 
-                    NexusReader.Application.Common.AppJsonContext.Default.LocalBackupEnvelope
-                );
-                if (envelope != null)
-                {
-                    var serverTime = ServerTimestamp ?? DateTime.MinValue;
-                    if (envelope.Timestamp > serverTime && envelope.MarkdownContent != InitialMarkdown)
-                    {
-                        _pendingBackup = envelope;
-                        _showRestorationBanner = true;
-                        StateHasChanged();
-                    }
-                }
-            }
-        }
-        catch (Exception ex)
-        {
-            _hasRunStorageInit = false; // Reset to allow retry on client render
-            Console.WriteLine($"[MarkdownEditor] Storage initialization deferred/failed: {ex.Message}");
-        }
-    }
-
-    private async Task RestoreBackupAsync()
-    {
-        if (_pendingBackup != null)
-        {
-            if (_module != null)
-            {
-                try
-                {
-                    // Prevent memory leak by cleaning up old instance in JS
-                    await _module.InvokeVoidAsync("destroyEditor", EditorId);
-                }
-                catch (Exception ex)
-                {
-                    Console.WriteLine($"[MarkdownEditor] Error destroying old editor during restore: {ex.Message}");
-                }
-            }
-
-            InitialMarkdown = _pendingBackup.MarkdownContent;
-            _showRestorationBanner = false;
-            _pendingBackup = null;
-
-            // Regenerate render key and ID to trigger clean Blazor element-level re-initialization
-            _reinitializeEditor = true;
-            EditorId = $"milkdown-editor-{Guid.NewGuid():N}";
-            _editorRenderKey = Guid.NewGuid();
-
-            // Trigger an immediate background API autosave to synchronize the database with the restored content
-            _ = TriggerAutosaveAsync(InitialMarkdown, _cts.Token);
-
-            StateHasChanged();
-        }
-    }
-
-    private async Task DismissBackupAsync()
-    {
-        _showRestorationBanner = false;
-        _pendingBackup = null;
-        try
-        {
-            await StorageService.RemoveAsync($"nexus-bkp-{ChapterId}");
-        }
-        catch (Exception ex)
-        {
-            Console.WriteLine($"[MarkdownEditor] Failed to dismiss backup from LocalStorage: {ex.Message}");
-        }
-        StateHasChanged();
-    }
-
-    public async Task FetchContentAsync()
-    {
-        if (_module is not null)
-        {
-            try
-            {
-                var markdown = await _module.InvokeAsync<string>("getMarkdownContent", EditorId);
-                
-                if (OnSave.HasDelegate)
-                {
-                    await OnSave.InvokeAsync(markdown);
-                }
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"[MarkdownEditor] Error fetching markdown content: {ex.Message}");
-            }
-        }
-    }
-
-    [JSInvokable]
-    public async Task OnEditorContentChanged(string currentMarkdown)
-    {
-        _currentMarkdown = currentMarkdown;
-
-        // Structured JSON Envelope Pattern
-        var envelope = new NexusReader.Application.DTOs.Media.LocalBackupEnvelope
-        {
-            ChapterId = ChapterId,
-            Timestamp = DateTime.UtcNow,
-            MarkdownContent = currentMarkdown
-        };
-
-        try
-        {
-            var envelopeJson = System.Text.Json.JsonSerializer.Serialize(
-                envelope, 
-                NexusReader.Application.Common.AppJsonContext.Default.LocalBackupEnvelope
-            );
-            await StorageService.SaveStringAsync($"nexus-bkp-{ChapterId}", envelopeJson);
-        }
-        catch (Exception ex)
-        {
-            Console.WriteLine($"[MarkdownEditor] Failed to save backup to LocalStorage: {ex.Message}");
-        }
-
-        // Status indicator to Offline - Local Backup Only
-        _status = SaveStatus.OfflineLocalBackup;
-        await InvokeAsync(StateHasChanged);
-
-        // Cancel pending timers thread-safely
-        CancellationTokenSource? ctsToCancel = null;
-        CancellationToken token;
-        lock (_timerLock)
-        {
-            if (_debounceCts != null)
-            {
-                ctsToCancel = _debounceCts;
-                _debounceCts = null;
-            }
-            _debounceCts = new CancellationTokenSource();
-            token = _debounceCts.Token; // Capture token synchronously under lock on UI thread
-        }
-
-        if (ctsToCancel != null)
-        {
-            try
-            {
-                await ctsToCancel.CancelAsync();
-                ctsToCancel.Dispose();
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"[MarkdownEditor] Error cancelling debounce timer: {ex.Message}");
-            }
-        }
-
-        // Start 5-second idle debounce timer
-        _ = Task.Run(async () =>
-        {
-            try
-            {
-                await Task.Delay(5000, token);
-                await TriggerAutosaveAsync(currentMarkdown, token);
-            }
-            catch (TaskCanceledException)
-            {
-                // Task cancelled on new keystroke
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"[MarkdownEditor] Debounce timer exception: {ex.Message}");
-            }
-        });
-    }
-
-    private async Task TriggerAutosaveAsync(string markdown, CancellationToken token)
-    {
-        if (token.IsCancellationRequested || _disposed) return;
-
-        _status = SaveStatus.Saving;
-        await InvokeAsync(StateHasChanged);
-
-        try
-        {
-            var request = new NexusReader.Application.DTOs.Media.AutosaveChapterRequest(markdown);
-            var response = await Http.PutAsJsonAsync(
-                $"/api/chapters/{ChapterId}/autosave", 
-                request, 
-                NexusReader.Application.Common.AppJsonContext.Default.AutosaveChapterRequest, 
-                token
-            );
-
-            if (_disposed) return;
-
-            if (response.IsSuccessStatusCode)
-            {
-                // Purge LocalStorage backup key on HTTP success
-                await StorageService.RemoveAsync($"nexus-bkp-{ChapterId}");
-                _status = SaveStatus.SavedToCloud;
-            }
-            else
-            {
-                _status = SaveStatus.OfflineLocalBackup;
-                var errorMsg = await response.Content.ReadAsStringAsync(token);
-                Console.WriteLine($"[MarkdownEditor] Autosave HTTP error: {response.StatusCode} - {errorMsg}");
-            }
-        }
-        catch (Exception ex)
-        {
-            if (_disposed) return;
-            _status = SaveStatus.OfflineLocalBackup;
-            Console.WriteLine($"[MarkdownEditor] Autosave HTTP exception: {ex.Message}");
-        }
-
-        if (_disposed) return;
-        await InvokeAsync(StateHasChanged);
-    }
-
-    [JSInvokable]
-    public async Task<string> UploadImageFromJs(string filename, string contentType, IJSStreamReference streamRef)
-    {
-        try
-        {
-            const long maxFileSize = 5 * 1024 * 1024; // 5MB limit
-            using var stream = await streamRef.OpenReadStreamAsync(maxFileSize, _cts.Token);
-            using var memoryStream = new MemoryStream();
-            await stream.CopyToAsync(memoryStream, _cts.Token);
-            var fileBytes = memoryStream.ToArray();
-
-            using var content = new MultipartFormDataContent();
-            using var fileContent = new ByteArrayContent(fileBytes);
-            fileContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue(contentType);
-            content.Add(fileContent, "file", filename);
-
-            var response = await Http.PostAsync("/api/media/upload", content, _cts.Token);
-            if (response.IsSuccessStatusCode)
-            {
-                var result = await response.Content.ReadFromJsonAsync<NexusReader.Application.DTOs.Media.UploadResultDto>(
-                    NexusReader.Application.Common.AppJsonContext.Default.UploadResultDto, _cts.Token);
-                return result?.Url ?? "https://placehold.co/600x400?text=Upload+Failed";
-            }
-            else
-            {
-                var errorMsg = await response.Content.ReadAsStringAsync(_cts.Token);
-                Console.WriteLine($"[MarkdownEditor] Image upload failed: {response.StatusCode} - {errorMsg}");
-                return "https://placehold.co/600x400?text=Upload+Failed";
-            }
-        }
-        catch (Exception ex)
-        {
-            Console.WriteLine($"[MarkdownEditor] Exception during image upload: {ex.Message}");
-            return "https://placehold.co/600x400?text=Upload+Failed";
-        }
-    }
-
-    public async ValueTask DisposeAsync()
-    {
-        _disposed = true;
-        try
-        {
-            _cts.Cancel();
-            _cts.Dispose();
-        }
-        catch
-        {
-            // Fail silently
-        }
-
-        CancellationTokenSource? ctsToCancel = null;
-        lock (_timerLock)
-        {
-            if (_debounceCts != null)
-            {
-                ctsToCancel = _debounceCts;
-                _debounceCts = null;
-            }
-        }
-
-        if (ctsToCancel != null)
-        {
-            try
-            {
-                ctsToCancel.Cancel();
-                ctsToCancel.Dispose();
-            }
-            catch
-            {
-                // Fail silently
-            }
-        }
-
-        try
-        {
-            // Always try to destroy via global window registration first to handle null _module
-            await JS.InvokeVoidAsync("milkdownWrapper.destroyEditor", EditorId);
-        }
-        catch
-        {
-            // Fallback to module if global is not set
-            if (_module is not null)
-            {
-                try
-                {
-                    await _module.InvokeVoidAsync("destroyEditor", EditorId);
-                }
-                catch
-                {
-                    // Fail silently
-                }
-            }
-        }
-
-        try
-        {
-            if (_module is not null)
-            {
-                await _module.DisposeAsync();
-            }
-        }
-        catch (JSDisconnectedException)
-        {
-            // Fail silently during circuit disconnection
-        }
-        catch (ObjectDisposedException)
-        {
-            // Fail silently if JS runtime/module is already disposed
-        }
-        catch (Exception ex)
-        {
-            Console.WriteLine($"[MarkdownEditor] Unexpected error during JS cleanup: {ex.Message}");
-        }
-        finally
-        {
-            _dotNetHelper?.Dispose();
-        }
-    }
-}

src/NexusReader.UI.Shared/Components/MarkdownEditor.razor.css

@@ -1,197 +0,0 @@
-.markdown-editor-container {
-    display: flex;
-    flex-direction: column;
-    gap: 1rem;
-}
-
-.milkdown-editor-wrapper {
-    flex: 1;
-    border: 1px solid var(--border);
-    border-radius: var(--radius-md);
-    background: var(--bg-surface);
-    overflow: auto;
-    padding: 1.5rem;
-    position: relative;
-    transition: border-color 0.2s ease, box-shadow 0.2s ease;
-}
-
-.milkdown-editor-wrapper:focus-within {
-    border-color: var(--accent);
-    box-shadow: 0 0 0 1px var(--accent-glow);
-}
-
-.editor-actions {
-    display: flex;
-    justify-content: flex-end;
-}
-
-/* 3. Bypassing Blazor CSS Isolation for Dynamic JS DOMs using ::deep */
-::deep .milkdown-editor-wrapper .crepe {
-    max-width: 100% !important;
-}
-
-::deep .milkdown-editor-wrapper .milkdown {
-    background-color: var(--bg-surface) !important;
-    color: var(--text-main) !important;
-    font-family: var(--nexus-font-sans) !important;
-    border: none !important;
-    box-shadow: none !important;
-    
-    /* Map Crepe's internal variables to our design tokens */
-    --crepe-color-background: var(--bg-surface);
-    --crepe-color-on-background: var(--text-main);
-    --crepe-color-surface: rgba(255, 255, 255, 0.03);
-    --crepe-color-surface-low: rgba(255, 255, 255, 0.01);
-    --crepe-color-primary: var(--accent);
-    --crepe-color-outline: var(--border);
-}
-
-::deep .milkdown-editor-wrapper .milkdown .editor {
-    color: var(--text-main) !important;
-    background: transparent !important;
-    outline: none !important;
-    padding: 0.5rem 0 !important;
-    min-height: 200px;
-}
-
-/* Style the buttons using variables from app.css */
-.nexus-btn {
-    font-family: var(--nexus-font-sans);
-    font-weight: 600;
-    border-radius: var(--radius-md);
-    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
-    cursor: pointer;
-    display: inline-flex;
-    align-items: center;
-    justify-content: center;
-    gap: 0.5rem;
-    border: none;
-    text-decoration: none;
-    background: var(--nexus-neon);
-    color: #000000;
-    padding: 8px 16px;
-    font-size: 0.9rem;
-    min-height: 36px;
-}
-
-.nexus-btn:hover {
-    transform: translateY(-2px);
-    filter: brightness(1.1);
-    box-shadow: 0 4px 15px var(--nexus-primary-glow);
-}
-
-.nexus-btn:focus-visible {
-    outline: 2px solid var(--accent);
-    outline-offset: 2px;
-}
-
-/* Stateful Status Indicator Footer */
-.editor-footer {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    padding: 0.5rem 1rem;
-    background: var(--bg-surface-low, rgba(255, 255, 255, 0.02));
-    border-radius: var(--radius-sm, 6px);
-    border: 1px solid var(--border);
-    margin-top: -0.5rem;
-}
-
-.status-indicator {
-    display: inline-flex;
-    align-items: center;
-    gap: 0.5rem;
-    font-size: 0.8rem;
-    font-weight: 500;
-    color: var(--text-muted, #888888);
-}
-
-.status-dot {
-    width: 8px;
-    height: 8px;
-    border-radius: 50%;
-    display: inline-block;
-    position: relative;
-    box-shadow: 0 0 8px currentColor;
-}
-
-.status-dot.saved {
-    color: #10B981; /* Green */
-    background-color: #10B981;
-}
-
-.status-dot.saving {
-    color: #F59E0B; /* Amber */
-    background-color: #F59E0B;
-    animation: status-pulse 1s infinite alternate;
-}
-
-.status-dot.offline {
-    color: #EF4444; /* Red */
-    background-color: #EF4444;
-}
-
-/* Orange Restoration Warning Banner */
-.restoration-banner {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    padding: 0.75rem 1.25rem;
-    background: rgba(245, 158, 11, 0.1);
-    border: 1px solid rgba(245, 158, 11, 0.3);
-    border-radius: var(--radius-md, 8px);
-    color: var(--text-main);
-    font-size: 0.9rem;
-    gap: 1rem;
-    margin-bottom: 0.75rem;
-    animation: banner-fadeIn 0.3s ease-out;
-}
-
-.banner-text {
-    font-weight: 500;
-}
-
-.banner-actions {
-    display: flex;
-    gap: 0.75rem;
-}
-
-.banner-btn {
-    padding: 6px 12px;
-    border-radius: var(--radius-sm, 4px);
-    font-weight: 600;
-    font-size: 0.8rem;
-    cursor: pointer;
-    border: none;
-    transition: all 0.2s ease;
-}
-
-.restore-btn {
-    background: #F59E0B;
-    color: #000;
-}
-
-.restore-btn:hover {
-    background: #D97706;
-    transform: translateY(-1px);
-}
-
-.dismiss-btn {
-    background: transparent;
-    border: 1px solid var(--border);
-    color: var(--text-main);
-}
-
-.dismiss-btn:hover {
-    background: rgba(255, 255, 255, 0.05);
-}
-
-@keyframes status-pulse {
-    0% { opacity: 0.4; transform: scale(0.9); }
-    100% { opacity: 1; transform: scale(1.1); }
-}
-
-@keyframes banner-fadeIn {
-    from { opacity: 0; transform: translateY(-5px); }
-    to { opacity: 1; transform: translateY(0); }
-}

src/NexusReader.UI.Shared/Components/Molecules/AiAssistantBubble.razor

@@ -1,9 +1,7 @@
 @using NexusReader.UI.Shared.Services
 @using NexusReader.Application.DTOs.AI
-@using Microsoft.Extensions.Logging
 @inject IQuizStateService QuizState
 @inject KnowledgeCoordinator Coordinator
-@inject ILogger<AiAssistantBubble> Logger
 @implements IDisposable
 
 <div class="ai-bubble-container">
@@ -136,7 +134,7 @@
         catch (Exception ex)
         {
             _displayedText = string.IsNullOrEmpty(Dialogue) ? "Błąd analizy." : Dialogue;
-            Logger.LogError(ex, "[AiAssistantBubble] Error fetching summary for block {BlockId}.", ContextBlockId);
+            Console.WriteLine($"[AiAssistantBubble] Error fetching summary: {ex.Message}");
         }
         finally
         {

src/NexusReader.UI.Shared/Components/Molecules/AiResponseRenderer.razor

@@ -2,12 +2,10 @@
 @using NexusReader.UI.Shared.Services
 @using NexusReader.Application.DTOs.AI
 @using NexusReader.Application.DTOs.User
-@using Microsoft.Extensions.Logging
 @using System.Net.Http.Json
 @inject HttpClient Http
 @inject ILibraryStateService LibraryStateService
 @inject NavigationManager NavigationManager
-@inject ILogger<AiResponseRenderer> Logger
 
 <div class="message-row @(Message.Sender == "User" ? "user-row" : "ai-row")">
     <div class="message-avatar" aria-hidden="true">
@@ -202,12 +200,12 @@
             }
             else
             {
-                Logger.LogWarning("[AiResponseRenderer] Purchase failed on server for book {BookId}.", _lockedBookId);
+                Console.WriteLine("[AiResponseRenderer] Purchase failed on server.");
             }
         }
         catch (Exception ex)
         {
-            Logger.LogError(ex, "[AiResponseRenderer] Error processing purchase for book {BookId}.", _lockedBookId);
+            Console.WriteLine($"[AiResponseRenderer] Error processing purchase: {ex.Message}");
         }
         finally
         {

src/NexusReader.UI.Shared/Components/Molecules/AiResponseRenderer.razor.css

@@ -30,17 +30,17 @@
 }
 
 .user-row .message-avatar {
-    background: var(--bg-surface);
+    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.05) 100%);
-    color: var(--text-main);
+    color: #ffffff;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.2);
-    box-shadow: 0 0 10px var(--border);
+    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
 }
 
 .ai-row .message-avatar {
     background: linear-gradient(135deg, #005f38 0%, #004024 100%);
     color: #e6fffa;
-    border: 1px solid var(--accent);
+    border: 1px solid rgba(0, 255, 153, 0.4);
-    box-shadow: 0 0 10px var(--accent-glow);
+    box-shadow: 0 0 10px rgba(0, 255, 153, 0.25);
 }
 
 .message-bubble {
@@ -55,23 +55,23 @@
 }
 
 .user-bubble {
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
-    color: var(--text-main);
+    color: #e4e4e7;
     border-top-right-radius: 4px;
-    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
 }
 
 .ai-bubble {
-    background: var(--bg-surface);
+    background: rgba(26, 26, 30, 0.6);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
-    color: var(--text-main);
+    color: #e2e8f0;
     border-top-left-radius: 4px;
-    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.03);
+    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.2);
 }
 
 .paywalled-bubble {
-    border-color: var(--accent-glow);
+    border-color: rgba(16, 185, 129, 0.15);
 }
 
 .message-header {
@@ -109,8 +109,8 @@
 .paywall-teaser {
     position: relative;
     margin-bottom: 1.5rem;
-    -webkit-mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
+    -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
-    mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
+    mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
     filter: blur(2px);
     pointer-events: none;
     -webkit-user-select: none;
@@ -119,12 +119,12 @@
 
 /* Upsell Card */
 .upsell-card {
-    background: var(--bg-base);
+    background: #1a1a1e;
     border-radius: 12px;
-    border: 1px solid var(--accent-glow);
+    border: 1px solid rgba(16, 185, 129, 0.25);
     padding: 1.5rem;
     margin-top: 1rem;
-    box-shadow: 0 8px 32px var(--accent-glow), 0 4px 12px var(--border);
+    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.08), 0 4px 12px rgba(0, 0, 0, 0.4);
     animation: card-slide-in 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
 }
 
@@ -141,14 +141,14 @@
 
 .upsell-header h4 {
     margin: 0;
-    color: var(--accent);
+    color: #10b981;
     font-size: 1.1rem;
     font-weight: 700;
     letter-spacing: 0.5px;
 }
 
 .upsell-text {
-    color: var(--text-main);
+    color: rgba(255, 255, 255, 0.75);
     font-size: 0.9rem;
     line-height: 1.55;
     margin: 0 0 1.25rem 0;
@@ -177,16 +177,15 @@
 }
 
 .btn-primary {
-    background: var(--accent);
+    background: #10b981;
     border: none;
-    color: var(--bg-surface);
+    color: #121214;
 }
 
 .btn-primary:hover:not(:disabled) {
-    background: var(--accent);
+    background: #0d9668;
-    opacity: 0.9;
     transform: translateY(-2px);
-    box-shadow: 0 4px 15px var(--accent-glow);
+    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
 }
 
 .btn-primary:active:not(:disabled) {
@@ -194,19 +193,19 @@
 }
 
 .btn-primary:disabled {
-    background: var(--accent-glow);
+    background: rgba(16, 185, 129, 0.5);
-    color: var(--text-muted);
+    color: rgba(18, 18, 20, 0.6);
     cursor: not-allowed;
 }
 
 .btn-secondary {
     background: transparent;
-    border: 1px solid var(--accent);
+    border: 1px solid #10b981;
-    color: var(--accent);
+    color: #10b981;
 }
 
 .btn-secondary:hover {
-    background: var(--accent-glow);
+    background: rgba(16, 185, 129, 0.05);
     transform: translateY(-2px);
 }
 
@@ -219,9 +218,9 @@
     display: flex;
     align-items: center;
     gap: 0.75rem;
-    background: var(--accent-glow);
+    background: rgba(16, 185, 129, 0.1);
-    border: 1px solid var(--accent);
+    border: 1px solid rgba(16, 185, 129, 0.3);
-    color: var(--accent);
+    color: #10b981;
     padding: 1rem;
     border-radius: 8px;
     margin-top: 1.25rem;
@@ -239,8 +238,8 @@
 .payment-spinner {
     width: 16px;
     height: 16px;
-    border: 2px solid var(--border);
+    border: 2px solid rgba(18, 18, 20, 0.2);
-    border-top-color: var(--accent);
+    border-top-color: #121214;
     border-radius: 50%;
     margin-right: 0.75rem;
     animation: spin 0.8s linear infinite;
@@ -266,49 +265,3 @@
     0% { transform: rotate(0deg); }
     100% { transform: rotate(360deg); }
 }
-
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   ============================================================ */
-
-.theme-light .ai-row .message-avatar {
-    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
-    color: #ffffff;
-    border: 1px solid rgba(16, 185, 129, 0.2);
-    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.15);
-}
-
-.theme-light .user-row .message-avatar {
-    box-shadow: 0 2px 8px rgba(139, 130, 115, 0.1);
-}
-
-.theme-light .upsell-card {
-    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
-}
-
-.theme-light .btn-primary {
-    background: var(--accent);
-    color: #ffffff;
-}
-
-.theme-light .btn-primary:hover:not(:disabled) {
-    background: #059669;
-    color: #ffffff;
-    opacity: 1;
-    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
-}
-
-.theme-light .btn-secondary {
-    border-color: var(--accent);
-    color: var(--accent);
-}
-
-.theme-light .btn-secondary:hover {
-    background: rgba(16, 185, 129, 0.05);
-}
-
-.theme-light .paywall-teaser {
-    -webkit-mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
-    mask-image: linear-gradient(to bottom, #000 30%, transparent 100%);
-}
-

src/NexusReader.UI.Shared/Components/Molecules/IntelligenceToolbar.razor

@@ -1,13 +1,10 @@
 @using NexusReader.UI.Shared.Services
 @using NexusReader.Application.Abstractions.Services
-@using Microsoft.Extensions.Logging
-@using System.Linq
 @inject IFocusModeService FocusMode
 @inject IIdentityService IdentityService
 @inject NavigationManager NavigationManager
 @inject IThemeService ThemeService
 @inject IKnowledgeService KnowledgeService
-@inject ILogger<IntelligenceToolbar> Logger
 @implements IDisposable
 
 <aside class="intelligence-toolbar">
@@ -49,30 +46,26 @@
     protected override void OnInitialized()
     {
         FocusMode.OnFocusModeChanged += HandleUpdate;
-        ThemeService.OnThemeChanged += HandleThemeChanged;
+        ThemeService.OnThemeChanged += HandleThemeChangedAsync;
     }
 
     private async Task HandleClearCache()
     {
-        Logger.LogInformation("[IntelligenceToolbar] Requesting cache clear...");
+        Console.WriteLine("[IntelligenceToolbar] Requesting cache clear...");
         var result = await KnowledgeService.ClearCacheAsync();
         if (result.IsSuccess)
         {
-            Logger.LogInformation("[IntelligenceToolbar] Cache cleared successfully.");
+            Console.WriteLine("[IntelligenceToolbar] Cache cleared successfully!");
-        }
-        else
-        {
-            Logger.LogWarning("[IntelligenceToolbar] Cache clear failed: {Errors}", string.Join("; ", result.Errors.Select(e => e.Message)));
         }
     }
 
     private Task HandleUpdate() => InvokeAsync(StateHasChanged);
 
-    private void HandleThemeChanged(ThemeMode mode) => InvokeAsync(StateHasChanged);
+    private Task HandleThemeChangedAsync() => InvokeAsync(StateHasChanged);
 
     public void Dispose()
     {
         FocusMode.OnFocusModeChanged -= HandleUpdate;
-        ThemeService.OnThemeChanged -= HandleThemeChanged;
+        ThemeService.OnThemeChanged -= HandleThemeChangedAsync;
     }
 }

src/NexusReader.UI.Shared/Components/Molecules/SelectionAiPanel.razor

@@ -1,12 +1,10 @@
 @using NexusReader.UI.Shared.Services
 @using NexusReader.UI.Shared.Models
 @using NexusReader.Application.DTOs.AI
-@using Microsoft.Extensions.Logging
 @inject KnowledgeCoordinator Coordinator
 @inject IReaderInteractionService InteractionService
 @inject IQuizStateService QuizService
 @inject IJSRuntime JS
-@inject ILogger<SelectionAiPanel> Logger
 
 @if (IsVisible)
 {
@@ -66,7 +64,7 @@
 
     protected override void OnParametersSet()
     {
-        Logger.LogDebug("[SelectionAiPanel] Parameters set. SelectedText: {Length} chars, Coordinates: {Top}", SelectedText.Length, Coordinates?.Top);
+        Console.WriteLine($"[SelectionAiPanel] Parameters set. SelectedText: {SelectedText.Length} chars, Coordinates: {Coordinates?.Top}");
         
         if (Coordinates != _lastCoordinates)
         {
@@ -102,7 +100,7 @@
             }
             catch (Exception ex)
             {
-                Logger.LogWarning(ex, "[SelectionAiPanel] Error positioning toolbar.");
+                Console.WriteLine($"[SelectionAiPanel] Error positioning toolbar: {ex.Message}");
             }
         }
     }
@@ -135,7 +133,7 @@
         }
         catch (Exception ex)
         {
-            Logger.LogError(ex, "[SelectionAiPanel] Error requesting summary for block {BlockId}.", BlockId);
+            Console.WriteLine($"[SelectionAiPanel] Error requesting summary: {ex.Message}");
         }
         finally
         {
@@ -175,7 +173,7 @@
         }
         catch (Exception ex)
         {
-            Logger.LogError(ex, "[SelectionAiPanel] Error generating quiz for block {BlockId}.", BlockId);
+            Console.WriteLine($"[SelectionAiPanel] Error generating quiz: {ex.Message}");
         }
         finally
         {

src/NexusReader.UI.Shared/Components/Organisms/ConceptsMap.razor.css

@@ -233,126 +233,3 @@
 .lock-icon {
     color: rgba(255, 255, 255, 0.2);
 }
-
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   ============================================================ */
-
-.theme-light .concepts-map::-webkit-scrollbar-thumb:hover {
-    background: var(--accent);
-}
-
-.theme-light .empty-map-state {
-    background: rgba(0, 0, 0, 0.01);
-    border-color: var(--border);
-    color: var(--text-muted);
-}
-
-.theme-light .empty-map-state .dim-icon {
-    color: var(--text-muted);
-    opacity: 0.4;
-}
-
-.theme-light .timeline-step:hover {
-    background: rgba(0, 0, 0, 0.02);
-}
-
-.theme-light .timeline-step.unlocked:hover {
-    border-color: rgba(16, 185, 129, 0.15);
-    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.05);
-}
-
-.theme-light .timeline-step.selected {
-    background: rgba(16, 185, 129, 0.04);
-    border-color: var(--accent);
-    box-shadow: 0 0 12px rgba(16, 185, 129, 0.15);
-}
-
-.theme-light .node-circle {
-    background: var(--bg-surface);
-}
-
-.theme-light .unlocked .node-circle {
-    background: var(--bg-surface);
-    border-color: var(--accent);
-    color: var(--accent);
-    box-shadow: none;
-}
-
-.theme-light .locked .node-circle {
-    background: var(--bg-base);
-    border-color: var(--border);
-    color: var(--text-muted);
-}
-
-.theme-light .node-glow {
-    display: none;
-}
-
-.theme-light .track-active {
-    background: var(--accent);
-    box-shadow: none;
-}
-
-.theme-light .track-inactive {
-    background: var(--border);
-}
-
-.theme-light .node-content {
-    background: var(--bg-surface);
-    border: 1px solid var(--border);
-}
-
-.theme-light .timeline-step.selected .node-content {
-    background: var(--bg-surface);
-    border-color: rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .segment-tag {
-    color: var(--text-muted);
-}
-
-.theme-light .unlocked .segment-tag {
-    color: var(--accent);
-}
-
-.theme-light .badge-unlocked {
-    background: rgba(16, 185, 129, 0.08);
-    color: var(--accent);
-    border-color: rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .badge-locked {
-    background: var(--bg-base);
-    color: var(--text-muted);
-    border-color: var(--border);
-}
-
-.theme-light .node-title {
-    color: var(--text-main);
-}
-
-.theme-light .timeline-step.unlocked:hover .node-title {
-    color: var(--accent);
-}
-
-.theme-light .locked .node-title {
-    color: var(--text-muted);
-}
-
-.theme-light .node-desc {
-    color: var(--text-muted);
-}
-
-.theme-light .locked .node-desc {
-    color: var(--text-muted);
-}
-
-.theme-light .check-icon {
-    color: var(--accent);
-}
-
-.theme-light .lock-icon {
-    color: var(--text-muted);
-}
-

src/NexusReader.UI.Shared/Components/Organisms/ContextualRecommendationsWidget.razor

@@ -1,112 +0,0 @@
-@using NexusReader.UI.Shared.Components.Atoms
-@using Microsoft.Extensions.Logging
-@inject IRecommendationService RecommendationService
-@inject NavigationManager NavigationManager
-@inject ILogger<ContextualRecommendationsWidget> Logger
-
-<section class="recommendations-panel glass-panel" aria-label="Kontekstowe rekomendacje">
-    <div class="panel-header">
-        <div class="header-left">
-            <NexusIcon Name="sparkles" Size="18" />
-            <h4>Odkryj Więcej</h4>
-        </div>
-        <span class="panel-badge">AI</span>
-    </div>
-
-    @if (_isLoading)
-    {
-        <div @key='"loading"' class="loading-state" role="status" aria-label="Ładowanie rekomendacji">
-            <div class="spinner-ring">
-                <div class="spinner-track"></div>
-                <div class="spinner-head"></div>
-            </div>
-            <span class="loading-label">Analizowanie kontekstu lektury…</span>
-        </div>
-    }
-    else if (_hasError)
-    {
-        <div @key='"error"' class="empty-state">
-            <NexusIcon Name="alert-circle" Size="32" />
-            <p>Nie udało się załadować rekomendacji.</p>
-        </div>
-    }
-    else if (_recommendations is null || _recommendations.Count == 0)
-    {
-        <div @key='"empty"' class="empty-state">
-            <NexusIcon Name="book-open" Size="32" />
-            <p>Zacznij czytać, aby odkryć powiązane tytuły.</p>
-        </div>
-    }
-    else
-    {
-        <ul @key='"list"' class="recommendations-list" role="list">
-            @foreach (var rec in _recommendations)
-            {
-                <li @key="rec.TargetBookId" class="recommendation-item @(rec.IsPremiumUpsell ? "premium" : "owned")"
-                    role="listitem">
-                    <div class="rec-content">
-                        <div class="rec-meta">
-                            <span class="match-badge" title="Dopasowanie semantyczne @rec.MatchPercentage%">
-                                @rec.MatchPercentage<span class="match-unit">%</span>
-                            </span>
-                            @if (rec.IsPremiumUpsell)
-                            {
-                                <span class="upsell-tag" aria-label="Książka premium">Premium</span>
-                            }
-                        </div>
-                        <p class="rec-book-title">@rec.BookTitle</p>
-                        <p class="rec-chapter-title">@rec.ChapterTitle</p>
-                    </div>
-                    <button class="rec-action-btn"
-                            @onclick="() => HandleRecommendationClick(rec)"
-                            aria-label="@(rec.IsPremiumUpsell ? "Kup " + rec.BookTitle : "Przejdź do " + rec.BookTitle)">
-                        <NexusIcon Name="@(rec.IsPremiumUpsell ? "shopping-cart" : "arrow-right")" Size="16" />
-                    </button>
-                </li>
-            }
-        </ul>
-    }
-</section>
-
-@code {
-    private List<RecommendationDto>? _recommendations;
-    private bool _isLoading = true;
-    private bool _hasError;
-
-    protected override async Task OnInitializedAsync()
-    {
-        await LoadRecommendationsAsync();
-    }
-
-    private async Task LoadRecommendationsAsync()
-    {
-        _isLoading = true;
-        _hasError = false;
-
-        try
-        {
-            _recommendations = await RecommendationService.GetRecommendationsAsync();
-            if (_recommendations is null)
-            {
-                _hasError = true;
-                Logger.LogWarning("[ContextualRecommendationsWidget] RecommendationService returned null; displaying error state.");
-            }
-        }
-        finally
-        {
-            _isLoading = false;
-        }
-    }
-
-    private void HandleRecommendationClick(RecommendationDto rec)
-    {
-        if (rec.IsPremiumUpsell)
-        {
-            NavigationManager.NavigateTo($"/catalog?highlight={rec.TargetBookId}");
-        }
-        else
-        {
-            NavigationManager.NavigateTo($"/reader/{rec.TargetBookId}");
-        }
-    }
-}

src/NexusReader.UI.Shared/Components/Organisms/ContextualRecommendationsWidget.razor.css

@@ -1,331 +0,0 @@
-/* ContextualRecommendationsWidget.razor.css
-   Uses Nexus Design System tokens (--nexus-*) for consistency.
-*/
-
-.recommendations-panel {
-    width: 100%;
-    padding: 1.75rem;
-    margin-top: 2.5rem;
-    background: var(--nexus-surface, #1a1a1e);
-    border: 1px solid var(--nexus-border, rgba(255, 255, 255, 0.05));
-    border-radius: 12px;
-    transition: border-color 0.3s ease, box-shadow 0.3s ease;
-}
-
-.recommendations-panel:hover {
-    border-color: rgba(16, 185, 129, 0.2);
-    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
-}
-
-/* ── Panel Header ── */
-.panel-header {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    margin-bottom: 1.5rem;
-}
-
-.header-left {
-    display: flex;
-    align-items: center;
-    gap: 0.5rem;
-    color: var(--nexus-accent, #10b981);
-}
-
-.header-left h4 {
-    margin: 0;
-    font-size: 0.95rem;
-    font-weight: 600;
-    color: var(--nexus-text-primary, #ffffff);
-    letter-spacing: 0.02em;
-}
-
-.panel-badge {
-    font-size: 0.7rem;
-    font-weight: 700;
-    letter-spacing: 0.08em;
-    padding: 0.2rem 0.55rem;
-    border-radius: 100px;
-    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(59, 130, 246, 0.1));
-    border: 1px solid rgba(16, 185, 129, 0.3);
-    color: var(--nexus-accent, #10b981);
-    text-transform: uppercase;
-}
-
-/* ── Loading State ── */
-.loading-state {
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    justify-content: center;
-    gap: 1rem;
-    padding: 2rem 1rem;
-}
-
-.spinner-ring {
-    position: relative;
-    width: 40px;
-    height: 40px;
-}
-
-.spinner-track {
-    position: absolute;
-    inset: 0;
-    border-radius: 50%;
-    border: 3px solid rgba(255, 255, 255, 0.05);
-}
-
-.spinner-head {
-    position: absolute;
-    inset: 0;
-    border-radius: 50%;
-    border: 3px solid transparent;
-    border-top-color: var(--nexus-accent, #10b981);
-    animation: nexus-spin 0.8s linear infinite;
-    box-shadow: 0 0 12px rgba(16, 185, 129, 0.4);
-}
-
-@keyframes nexus-spin {
-    to { transform: rotate(360deg); }
-}
-
-.loading-label {
-    font-size: 0.82rem;
-    color: var(--nexus-text-secondary, #a1a1aa);
-    font-style: italic;
-}
-
-/* ── Empty / Error State ── */
-.empty-state {
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    gap: 0.75rem;
-    padding: 1.5rem;
-    text-align: center;
-    color: var(--nexus-text-secondary, #a1a1aa);
-    opacity: 0.65;
-}
-
-.empty-state p {
-    margin: 0;
-    font-size: 0.875rem;
-}
-
-/* ── Recommendations List ── */
-.recommendations-list {
-    list-style: none;
-    margin: 0;
-    padding: 0;
-    display: flex;
-    flex-direction: column;
-    gap: 0.75rem;
-}
-
-.recommendation-item {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    gap: 0.75rem;
-    padding: 1rem 1.1rem;
-    border-radius: 10px;
-    background: rgba(255, 255, 255, 0.02);
-    border: 1px solid rgba(255, 255, 255, 0.06);
-    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
-    cursor: default;
-}
-
-.recommendation-item:hover {
-    background: rgba(255, 255, 255, 0.04);
-    transform: translateX(2px);
-}
-
-.recommendation-item.premium {
-    border-color: rgba(245, 158, 11, 0.2);
-}
-
-.recommendation-item.premium:hover {
-    border-color: rgba(245, 158, 11, 0.4);
-    background: rgba(245, 158, 11, 0.04);
-}
-
-.recommendation-item.owned {
-    border-color: rgba(16, 185, 129, 0.1);
-}
-
-.recommendation-item.owned:hover {
-    border-color: rgba(16, 185, 129, 0.25);
-}
-
-/* ── Rec Content ── */
-.rec-content {
-    flex: 1;
-    min-width: 0;
-    display: flex;
-    flex-direction: column;
-    gap: 0.25rem;
-}
-
-.rec-meta {
-    display: flex;
-    align-items: center;
-    gap: 0.5rem;
-    margin-bottom: 0.15rem;
-}
-
-.match-badge {
-    font-size: 0.8rem;
-    font-weight: 700;
-    color: var(--nexus-accent, #10b981);
-    background: rgba(16, 185, 129, 0.1);
-    border-radius: 4px;
-    padding: 0.1rem 0.45rem;
-}
-
-.match-unit {
-    font-size: 0.65rem;
-    font-weight: 500;
-}
-
-.upsell-tag {
-    font-size: 0.7rem;
-    font-weight: 600;
-    letter-spacing: 0.05em;
-    color: #f59e0b;
-    background: rgba(245, 158, 11, 0.1);
-    border: 1px solid rgba(245, 158, 11, 0.2);
-    border-radius: 4px;
-    padding: 0.1rem 0.45rem;
-    text-transform: uppercase;
-}
-
-.rec-book-title {
-    margin: 0;
-    font-size: 0.9rem;
-    font-weight: 600;
-    color: var(--nexus-text-primary, #ffffff);
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-}
-
-.rec-chapter-title {
-    margin: 0;
-    font-size: 0.78rem;
-    color: var(--nexus-text-secondary, #a1a1aa);
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-}
-
-/* ── Action Button ── */
-.rec-action-btn {
-    flex-shrink: 0;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    width: 32px;
-    height: 32px;
-    border-radius: 8px;
-    border: 1px solid rgba(255, 255, 255, 0.08);
-    background: transparent;
-    color: var(--nexus-text-secondary, #a1a1aa);
-    cursor: pointer;
-    transition: all 0.2s ease;
-}
-
-.rec-action-btn:hover {
-    background: rgba(16, 185, 129, 0.1);
-    border-color: rgba(16, 185, 129, 0.3);
-    color: var(--nexus-accent, #10b981);
-    transform: scale(1.1);
-}
-
-.premium .rec-action-btn:hover {
-    background: rgba(245, 158, 11, 0.1);
-    border-color: rgba(245, 158, 11, 0.3);
-    color: #f59e0b;
-}
-
-@media (max-width: 768px) {
-    .recommendations-panel {
-        padding: 1.25rem;
-    }
-}
-
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   ============================================================ */
-
-.theme-light .recommendations-panel {
-    background: var(--bg-surface);
-    border: 1px solid var(--border);
-}
-
-.theme-light .recommendations-panel:hover {
-    box-shadow: 0 8px 24px rgba(139, 130, 115, 0.12);
-}
-
-.theme-light .header-left h4 {
-    color: var(--text-main);
-}
-
-.theme-light .spinner-track {
-    border: 3px solid rgba(0, 0, 0, 0.05);
-}
-
-.theme-light .loading-label,
-.theme-light .empty-state {
-    color: var(--text-muted);
-}
-
-.theme-light .recommendation-item {
-    background: rgba(0, 0, 0, 0.02);
-    border: 1px solid rgba(0, 0, 0, 0.06);
-}
-
-.theme-light .recommendation-item:hover {
-    background: rgba(0, 0, 0, 0.04);
-}
-
-.theme-light .recommendation-item.premium {
-    border-color: rgba(245, 158, 11, 0.2);
-}
-
-.theme-light .recommendation-item.premium:hover {
-    border-color: rgba(245, 158, 11, 0.4);
-    background: rgba(245, 158, 11, 0.04);
-}
-
-.theme-light .recommendation-item.owned {
-    border-color: rgba(16, 185, 129, 0.1);
-}
-
-.theme-light .recommendation-item.owned:hover {
-    border-color: rgba(16, 185, 129, 0.25);
-}
-
-.theme-light .rec-book-title {
-    color: var(--text-main);
-}
-
-.theme-light .rec-chapter-title {
-    color: var(--text-muted);
-}
-
-.theme-light .rec-action-btn {
-    border: 1px solid rgba(0, 0, 0, 0.08);
-    color: var(--text-muted);
-}
-
-.theme-light .rec-action-btn:hover {
-    background: rgba(16, 185, 129, 0.1);
-    border-color: rgba(16, 185, 129, 0.3);
-    color: var(--accent);
-}
-
-.theme-light .premium .rec-action-btn:hover {
-    background: rgba(245, 158, 11, 0.1);
-    border-color: rgba(245, 158, 11, 0.3);
-    color: #f59e0b;
-}

src/NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor

@@ -5,14 +5,14 @@
 <section class="current-reading-card glass-panel">
     @if (Book != null)
     {
-        <div @key='"current-reading-book"' class="card-layout">
+        <div class="card-layout">
             <div class="book-cover">
-                <img src="@(string.IsNullOrEmpty(Book.CoverUrl) ? "https://via.placeholder.com/120x180?text=No+Cover" : Book.CoverUrl)" alt="@Book.Title" aria-describedby="book-title-@Book.Id" />
+                <img src="@(Book.CoverUrl ?? "https://via.placeholder.com/120x180?text=No+Cover")" alt="@Book.Title" />
             </div>
             
             <div class="book-details">
                 <div class="header-info">
-                    <h3 id="book-title-@Book.Id" class="book-title">@Book.Title</h3>
+                    <h3 class="book-title">@Book.Title</h3>
                     <span class="author-name">by @Book.Author.Name</span>
                 </div>
 
@@ -41,8 +41,8 @@
                 }
 
                 <div class="actions">
-                    <button class="btn-nexus outline" @onclick="HandleContinueReading" aria-label="Kontynuuj czytanie">
+                    <button class="btn-nexus outline" @onclick="HandleContinueReading">
-                        Kontynuuj czytanie
+                        Continue Reading
                         <NexusIcon Name="arrow-right" Size="16" />
                     </button>
                 </div>
@@ -51,7 +51,7 @@
     }
     else
     {
-        <div @key='"current-reading-empty"' class="empty-state">
+        <div class="empty-state">
             <div class="empty-icon">
                 <NexusIcon Name="book-open" Size="48" />
             </div>

src/NexusReader.UI.Shared/Components/Organisms/CurrentReadingWidget.razor.css

@@ -194,155 +194,19 @@
     margin: 0;
 }
 
-@media (max-width: 767px) {
+@media (max-width: 768px) {
-    .current-reading-card {
-        background: #1e1e22; /* Lighter anthracite slate for depth */
-        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3); /* Ambient card shadow */
-        padding: 14px;
-        border-radius: 16px;
-        border: 1px solid var(--border);
-    }
-
     .card-layout {
         flex-direction: column;
-        align-items: stretch;
+        align-items: center;
-        text-align: left;
+        text-align: center;
-        gap: 0.75rem;
+        gap: 1.5rem;
     }
     
-    .book-cover {
+    .book-title, .chapter-name {
-        align-self: center;
-        width: 90px;
-    }
-    
-    .book-details {
-        width: 100%;
-        text-align: left;
-    }
-    
-    .book-title {
-        font-size: 1.25rem;
-        text-align: left;
         white-space: normal;
     }
     
-    .author-name {
-        text-align: left;
-        font-size: 0.8rem;
-    }
-    
     .header-info, .chapter-progress {
-        align-items: stretch;
+        align-items: center;
-    }
-
-    .chapter-name {
-        white-space: normal;
-        font-size: 0.8rem;
-    }
-    
-    .chapter-progress {
-        margin: 0.5rem 0; /* Margin separator before tracking bar */
-        width: 100%;
-    }
-    
-    .progress-bar-container {
-        width: 100%;
-    }
-
-    .book-excerpt {
-        display: -webkit-box; /* Normal display to wrap synopsis */
-        overflow: hidden;
-        -webkit-line-clamp: 2;
-        -webkit-box-orient: vertical;
-        margin-bottom: 0.75rem;
-        text-align: left;
-        font-size: 0.85rem;
-    }
-    
-    .actions {
-        width: 100%;
-        margin-top: 0.25rem;
-    }
-    
-    .actions .btn-nexus.outline {
-        width: 100%;
-        justify-content: center;
-        padding: 0.75rem 1.25rem; /* Larger touch target */
-        box-sizing: border-box;
-        background: transparent !important;
-        color: var(--accent) !important;
-        border: 1px solid var(--accent) !important;
-        display: inline-flex !important;
-        align-items: center !important;
-        font-weight: 600 !important;
-    }
-
-    .actions .btn-nexus.outline:hover {
-        background: var(--accent-glow) !important;
-        color: var(--accent) !important;
-    }
-
-    .theme-light .current-reading-card {
-        background: #ffffff; /* Pure white card surface for light theme */
-        box-shadow: 0 12px 24px rgba(139, 130, 115, 0.12);
     }
 }
-
-
-
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   ============================================================ */
-
-.theme-light .current-reading-card {
-    background: var(--bg-surface);
-    border: 1px solid var(--border);
-}
-
-.theme-light .current-reading-card:hover {
-    background: var(--bg-surface);
-    border-color: var(--accent);
-    box-shadow: 0 10px 30px rgba(139, 130, 115, 0.12);
-}
-
-.theme-light .book-cover img {
-    box-shadow: 0 15px 35px rgba(139, 130, 115, 0.18);
-    border: 1px solid rgba(0, 0, 0, 0.06);
-}
-
-.theme-light .book-title {
-    color: var(--text-main);
-}
-
-.theme-light .author-name {
-    color: var(--text-muted);
-}
-
-.theme-light .chapter-name {
-    color: var(--text-main);
-}
-
-.theme-light .progress-bar-container {
-    background: #e4e1d9;
-}
-
-.theme-light .progress-bar-fill {
-    box-shadow: 0 0 6px rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .book-excerpt {
-    color: var(--text-muted);
-}
-
-.theme-light .empty-text h3 {
-    color: var(--text-main);
-}
-
-.theme-light .empty-text p {
-    color: var(--text-muted);
-}
-
-.theme-light .empty-icon {
-    color: var(--accent);
-    filter: none;
-}

src/NexusReader.UI.Shared/Components/Organisms/MobileReaderToolbar.razor

@@ -114,7 +114,7 @@
         ThemeService.OnThemeChanged += HandleThemeChanged;
     }
 
-    private void HandleThemeChanged(ThemeMode mode) => InvokeAsync(StateHasChanged);
+    private Task HandleThemeChanged() => InvokeAsync(StateHasChanged);
 
     private double GetDashOffset()
     {

src/NexusReader.UI.Shared/Components/Organisms/ReaderCanvas.razor

@@ -127,7 +127,7 @@
     protected override async Task OnInitializedAsync()
     {
         await Coordinator.ClearAsync();
-        ThemeService.OnThemeChanged += HandleThemeChanged;
+        ThemeService.OnThemeChanged += HandleUpdate;
         NavigationService.OnNavigationChanged += OnNavigationChanged;
         QuizService.OnQuizUpdated += HandleUpdate;
 
@@ -451,8 +451,6 @@
 
     private Task HandleUpdate() => InvokeAsync(StateHasChanged);
 
-    private void HandleThemeChanged(ThemeMode mode) => InvokeAsync(StateHasChanged);
-
     private void HandleEscape()
     {
         if (ViewModel != null)
@@ -468,7 +466,7 @@
 
     public async ValueTask DisposeAsync()
     {
-        ThemeService.OnThemeChanged -= HandleThemeChanged;
+        ThemeService.OnThemeChanged -= HandleUpdate;
         NavigationService.OnNavigationChanged -= OnNavigationChanged;
         QuizService.OnQuizUpdated -= HandleUpdate;
 

src/NexusReader.UI.Shared/Layout/MainHubLayout.razor

@@ -1,5 +1,4 @@
 @inherits LayoutComponentBase
-@implements IDisposable
 @using NexusReader.UI.Shared.Components.Molecules
 @using NexusReader.UI.Shared.Components.Atoms
 @using NexusReader.Application.Abstractions.Services
@@ -7,13 +6,13 @@
 
 @if (!_isFullyLoaded)
 {
-    <div @key='"preloader"' class="app-preloader" style="backdrop-filter: blur(15px); background: rgba(18, 18, 18, 0.95); z-index: 100000; color: #ffffff;">
+    <div class="app-preloader" style="backdrop-filter: blur(15px); background: rgba(18, 18, 18, 0.95); z-index: 100000; color: #ffffff;">
         <div class="preloader-spinner"></div>
         <div class="preloader-text" style="color: #ffffff;">Synchronizing Secure Session...</div>
     </div>
 }
 
-<div @key='"hub-container"' class="hub-container @(_isMobileMenuOpen ? "mobile-menu-open" : "") @(ThemeService.IsLightMode ? "theme-light" : "theme-dark")">
+<div class="hub-container @(_isMobileMenuOpen ? "mobile-menu-open" : "")">
     <AuthorizeView>
         <Authorized>
             <!-- Mobile Sticky Top-bar -->
@@ -95,12 +94,6 @@
                         </div>
                         <span class="nav-text">Koncentry</span>
                     </NavLink>
-                    <NavLink class="nav-item" href="/creator" @onclick="CloseMobileMenu" title="Kreator" aria-label="Kreator">
-                        <div class="nav-icon">
-                            <NexusIcon Name="edit" Size="20" />
-                        </div>
-                        <span class="nav-text">Kreator</span>
-                    </NavLink>
                 </nav>
 
                 <div class="sidebar-footer">
@@ -117,32 +110,6 @@
                     </button>
                 </div>
             </aside>
-
-            <!-- Reader Mobile Dock v3 -->
-            <nav class="reader-mobile-dock">
-                <NavLink class="dock-item" href="/dashboard" Match="NavLinkMatch.All" title="Pulpit">
-                    <NexusIcon Name="home" Size="20" />
-                    <span class="dock-text">Pulpit</span>
-                </NavLink>
-                <NavLink class="dock-item" href="/catalog" title="Katalog">
-                    <NexusIcon Name="layout" Size="20" />
-                    <span class="dock-text">Katalog</span>
-                </NavLink>
-                <NavLink class="dock-item central-action" href="/intelligence" title="Globalne AI">
-                    <div class="central-action-inner">
-                        <NexusIcon Name="robot" Size="20" />
-                    </div>
-                    <span class="dock-text">AI</span>
-                </NavLink>
-                <NavLink class="dock-item" href="/my-books" title="Moje">
-                    <NexusIcon Name="book-open" Size="20" />
-                    <span class="dock-text">Moje</span>
-                </NavLink>
-                <NavLink class="dock-item" href="/profile" title="Konto">
-                    <NexusIcon Name="user" Size="20" />
-                    <span class="dock-text">Konto</span>
-                </NavLink>
-            </nav>
         </Authorized>
     </AuthorizeView>
 
@@ -157,7 +124,6 @@
     [Inject] private AuthenticationStateProvider AuthStateProvider { get; set; } = default!;
     [Inject] private IIdentityService IdentityService { get; set; } = default!;
     [Inject] private NavigationManager NavigationManager { get; set; } = default!;
-    [Inject] private IThemeService ThemeService { get; set; } = default!;
 
     private bool _isSyncing = false;
     private bool _isMobileMenuOpen = false;
@@ -165,8 +131,6 @@
 
     protected override async Task OnInitializedAsync()
     {
-        ThemeService.OnThemeChanged += HandleThemeChanged;
-
         if (_isSyncing) return;
         
         var authState = await AuthStateProvider.GetAuthenticationStateAsync();
@@ -178,16 +142,10 @@
         }
     }
 
-    private void HandleThemeChanged(ThemeMode mode)
+    protected override void OnAfterRender(bool firstRender)
-    {
-        InvokeAsync(StateHasChanged);
-    }
-
-    protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (firstRender)
         {
-            await ThemeService.InitializeAsync();
             _isFullyLoaded = true;
             StateHasChanged();
         }
@@ -209,10 +167,4 @@
         await IdentityService.LogoutAsync();
         NavigationManager.NavigateTo("/account/logout-form", true);
     }
-
-    public void Dispose()
-    {
-        ThemeService.OnThemeChanged -= HandleThemeChanged;
-        GC.SuppressFinalize(this);
-    }
 }

src/NexusReader.UI.Shared/Layout/MainHubLayout.razor.css

@@ -2,16 +2,16 @@
     display: flex;
     width: 100vw;
     height: 100vh;
-    background: var(--bg-base);
+    background: #121214;
-    color: var(--text-main);
+    color: #e4e4e7;
     overflow: hidden;
 }
 
 ::deep .hub-sidebar {
     width: 80px;
     height: 100%;
-    background: var(--bg-surface);
+    background: #0d0d0d;
-    border-right: 1px solid var(--border);
+    border-right: 1px solid rgba(255, 255, 255, 0.05);
     display: flex;
     flex-direction: column;
     z-index: 100;
@@ -55,7 +55,7 @@
     justify-content: center;
     width: 100%;
     height: 54px;
-    color: var(--text-muted);
+    color: #8b8273;
     text-decoration: none;
     transition: color 0.2s ease, background-color 0.2s ease;
     position: relative;
@@ -63,7 +63,7 @@
 
 ::deep .nav-item:hover {
     color: #10b981;
-    background: rgba(0, 0, 0, 0.04);
+    background: rgba(255, 255, 255, 0.01);
 }
 
 ::deep .nav-item:focus-visible {
@@ -103,7 +103,7 @@
 
 ::deep .sidebar-footer {
     padding: 1.5rem 0;
-    border-top: 1px solid var(--border);
+    border-top: 1px solid rgba(255, 255, 255, 0.05);
     display: flex;
     flex-direction: column;
     align-items: center;
@@ -119,15 +119,15 @@
 ::deep .user-avatar {
     width: 36px;
     height: 36px;
-    background: var(--bg-base);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.08);
     border-radius: 50%;
     display: flex;
     align-items: center;
     justify-content: center;
     font-size: 0.9rem;
     font-weight: 600;
-    color: var(--text-main);
+    color: #e4e4e7;
     flex-shrink: 0;
 }
 
@@ -138,7 +138,7 @@
 ::deep .logout-btn {
     background: transparent;
     border: none;
-    color: var(--text-muted);
+    color: #8b8273;
     cursor: pointer;
     padding: 0.5rem;
     border-radius: 8px;
@@ -157,7 +157,7 @@
     flex: 1;
     height: 100%;
     overflow-y: auto;
-    background: var(--bg-base);
+    background: #121214;
 }
 
 .hub-content {
@@ -194,11 +194,7 @@
     display: none;
 }
 
-.reader-mobile-dock {
+@media (max-width: 768px) {
-    display: none;
-}
-
-@media (max-width: 767px) {
     .nexus-mobile-topbar {
         display: flex;
         align-items: center;
@@ -208,10 +204,10 @@
         left: 0;
         right: 0;
         height: 60px;
-        background: var(--bg-surface);
+        background: rgba(18, 18, 18, 0.85);
         backdrop-filter: blur(20px);
         -webkit-backdrop-filter: blur(20px);
-        border-bottom: 1px solid var(--border);
+        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
         padding: 0 1.25rem;
         z-index: 150;
     }
@@ -266,7 +262,7 @@
         width: 32px;
         height: 32px;
         background: linear-gradient(135deg, var(--nexus-neon) 0%, #0099ff 100%);
-        border: 1px solid var(--border);
+        border: 1px solid rgba(255, 255, 255, 0.1);
         border-radius: 50%;
         display: flex;
         align-items: center;
@@ -299,7 +295,7 @@
         bottom: 0;
         width: 280px;
         height: 100%;
-        background: var(--bg-surface);
+        background: #141414;
         z-index: 200;
         transform: translateX(-100%);
         will-change: transform;
@@ -328,7 +324,7 @@
 
     ::deep .sidebar-header {
         padding: 1.5rem 1.25rem;
-        border-bottom: 1px solid var(--border);
+        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
     }
 
     ::deep .sidebar-nav {
@@ -346,217 +342,4 @@
     }
 }
 
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   Scoped via .theme-light on an ancestor element.
-   ============================================================ */
 
-/* --- Desktop Sidebar: warm paper shadow --- */
-.theme-light ::deep .hub-sidebar {
-    box-shadow: 4px 0 20px rgba(139, 130, 115, 0.08);
-    background: var(--bg-surface) !important;
-    border-right: 1px solid var(--border) !important;
-}
-
-/* --- Logo icon: remove neon glow --- */
-.theme-light ::deep .logo-icon {
-    filter: none;
-}
-
-/* --- Nav item hover: ensure green text, warm hover bg --- */
-.theme-light ::deep .nav-item:hover {
-    color: #10b981;
-    background: rgba(0, 0, 0, 0.02);
-}
-
-/* --- Nav active indicator: reduced glow --- */
-.theme-light ::deep .nav-item.active::before {
-    box-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
-}
-
-/* --- Nexus loader: remove neon drop-shadow --- */
-.theme-light ::deep .nexus-loader {
-    filter: none;
-}
-
-/* --- Mobile Styles --- */
-@media (max-width: 768px) {
-
-    /* Hamburger button: dark text on warm paper */
-    .theme-light .hamburger-btn {
-        color: #292524;
-    }
-
-    .theme-light .hamburger-btn:hover {
-        background: rgba(0, 0, 0, 0.04);
-    }
-
-    /* User avatar mini: solid accent, white text, no neon glow */
-    .theme-light .user-avatar-mini {
-        background: #10b981;
-        color: #ffffff;
-        box-shadow: 0 2px 8px rgba(16, 185, 129, 0.15);
-    }
-
-    /* Pulsing logo: subtle accent pulse, no neon glow */
-    .theme-light .pulsing-logo {
-        animation: pulse-glow-light 2s infinite ease-in-out;
-    }
-
-    @keyframes pulse-glow-light {
-        0%, 100% {
-            filter: none;
-            opacity: 0.85;
-        }
-        50% {
-            filter: drop-shadow(0 0 4px rgba(16, 185, 129, 0.2));
-            opacity: 1;
-        }
-    }
-
-    /* Mobile sidebar open state: warm shadow instead of dark */
-    .theme-light .mobile-menu-open ::deep .hub-sidebar {
-        box-shadow: 10px 0 30px rgba(139, 130, 115, 0.2);
-    }
-
-
-    /* Content padding for bottom navigation dock */
-    .hub-content {
-        padding: 1.25rem 1.25rem calc(1.25rem + 96px + env(safe-area-inset-bottom, 0px)) !important;
-    }
-
-    /* Reader Mobile Dock v3 */
-    ::deep .reader-mobile-dock {
-        display: flex;
-        position: fixed;
-        bottom: calc(16px + env(safe-area-inset-bottom, 0px));
-        left: 20px;
-        right: 20px;
-        height: 64px;
-        background: rgba(26, 26, 30, 0.75); /* Translucent dark mode */
-        backdrop-filter: blur(20px);
-        -webkit-backdrop-filter: blur(20px);
-        border: 1px solid var(--border); /* Microscopic perimeter border */
-        border-radius: 30px; /* Floating capsule rounded borders */
-        z-index: 150;
-        padding: 0 16px;
-        justify-content: space-around;
-        align-items: center;
-        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
-    }
-    
-    ::deep .dock-item {
-        display: flex;
-        flex-direction: column;
-        align-items: center;
-        justify-content: center;
-        flex: 1;
-        height: 100%;
-        color: var(--text-muted);
-        text-decoration: none;
-        transition: color 0.2s ease, filter 0.2s ease;
-        position: relative;
-        gap: 2px;
-    }
-    
-    ::deep .dock-item:hover, ::deep .dock-item.active {
-        color: var(--accent) !important;
-        filter: drop-shadow(0 0 4px var(--accent-glow)); /* Clean accent glow drop-shadow */
-    }
-
-    ::deep .dock-item ::deep svg,
-    ::deep .dock-item ::deep .nexus-icon,
-    ::deep .dock-item svg,
-    ::deep .dock-item .nexus-icon {
-        color: inherit !important;
-        fill: currentColor !important;
-    }
-    
-    ::deep .dock-text {
-        display: block !important;
-        font-size: 10px;
-        font-weight: 500;
-        margin-top: 2px;
-        white-space: nowrap;
-        color: inherit;
-    }
-
-    /* Central action button style */
-    ::deep .dock-item.central-action {
-        display: flex;
-        flex-direction: column;
-        align-items: center;
-        justify-content: center;
-        position: relative;
-        flex: 1;
-        height: 100%;
-        gap: 2px;
-        margin-top: 0;
-        transform: none !important;
-        z-index: 160;
-    }
-    
-    ::deep .central-action-inner {
-        width: 36px;
-        height: 36px;
-        border-radius: 50%;
-        background: var(--accent); /* Solid green background */
-        color: #ffffff !important; /* White robot icon */
-        display: flex;
-        align-items: center;
-        justify-content: center;
-        border: none !important;
-        box-shadow: 0 4px 10px rgba(0, 255, 153, 0.3);
-        transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.2s ease;
-    }
-
-    ::deep .central-action-inner ::deep svg,
-    ::deep .central-action-inner ::deep .nexus-icon,
-    ::deep .central-action-inner svg,
-    ::deep .central-action-inner .nexus-icon {
-        color: #ffffff !important;
-        fill: currentColor !important;
-    }
-    
-    ::deep .dock-item.central-action:hover .central-action-inner,
-    ::deep .dock-item.central-action.active .central-action-inner {
-        transform: scale(1.05);
-        box-shadow: 0 4px 14px rgba(0, 255, 153, 0.5);
-    }
-
-    ::deep .central-action-glow {
-        display: none; /* Purged background glow */
-    }
-
-    /* Light Theme Overrides */
-    .theme-light ::deep .reader-mobile-dock {
-        background: rgba(244, 241, 234, 0.9); /* Translucent light mode warm paper background */
-        box-shadow: 0 8px 30px rgba(139, 130, 115, 0.15);
-    }
-    
-    .theme-light ::deep .dock-item {
-        color: var(--text-muted);
-    }
-    
-    .theme-light ::deep .dock-item:hover, .theme-light ::deep .dock-item.active {
-        color: var(--accent) !important;
-        filter: drop-shadow(0 0 3px var(--accent-glow));
-    }
-    
-    .theme-light ::deep .central-action-inner {
-        background: var(--accent) !important;
-        color: #ffffff !important;
-        border: none !important;
-        box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25) !important;
-    }
-    
-    .theme-light ::deep .dock-item.central-action:hover .central-action-inner,
-    .theme-light ::deep .dock-item.central-action.active .central-action-inner {
-        box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35) !important;
-        transform: scale(1.05);
-    }
-    
-    .theme-light ::deep .central-action-glow {
-        display: none;
-    }
-}

src/NexusReader.UI.Shared/Layout/ReaderLayout.razor

@@ -343,7 +343,7 @@
         InteractionService.OnAssistantRequested += HandleAssistantRequestedAsync;
         InteractionService.OnScrollPercentChanged += HandleScrollPercentChanged;
         GraphService.OnGraphUpdated += HandleGraphUpdatedAsync;
-        ThemeService.OnThemeChanged += HandleThemeChanged;
+        ThemeService.OnThemeChanged += HandleThemeChangedAsync;
         Coordinator.OnSelectionSummaryStateChanged += HandleUpdate;
 
         var context = PlatformService.GetDeviceContext();
@@ -359,7 +359,7 @@
         }
     }
 
-    private void HandleThemeChanged(ThemeMode mode) => InvokeAsync(StateHasChanged);
+    private async Task HandleThemeChangedAsync() => await InvokeAsync(StateHasChanged);
 
     private void SetActiveTab(SidebarTab tab)
     {
@@ -520,7 +520,7 @@
         InteractionService.OnAssistantRequested -= HandleAssistantRequestedAsync;
         InteractionService.OnScrollPercentChanged -= HandleScrollPercentChanged;
         GraphService.OnGraphUpdated -= HandleGraphUpdatedAsync;
-        ThemeService.OnThemeChanged -= HandleThemeChanged;
+        ThemeService.OnThemeChanged -= HandleThemeChangedAsync;
         Coordinator.OnSelectionSummaryStateChanged -= HandleUpdate;
 
         try

src/NexusReader.UI.Shared/Pages/Account/Login.razor

@@ -33,7 +33,7 @@
             <span>lub</span>
         </div>
 
-        <EditForm FormName="login-form" Model="@_loginModel" OnValidSubmit="HandleLogin" class="auth-form">
+        <EditForm Model="@_loginModel" OnValidSubmit="HandleLogin" class="auth-form">
             <DataAnnotationsValidator />
 
             <div class="field-group">
@@ -98,7 +98,7 @@
     </div>
 </div>
 
-<form @formname="hidden-login-form" id="nexusLoginForm" method="post" action="/account/login-form" style="display:none">
+<form id="nexusLoginForm" method="post" action="/account/login-form" style="display:none">
     <input type="hidden" name="email" value="@_loginModel.Email" />
     <input type="hidden" name="password" value="@_loginModel.Password" />
     <input type="hidden" name="rememberMe" value="@(_loginModel.RememberMe ? "true" : "false")" />
@@ -117,10 +117,7 @@
     [SupplyParameterFromQuery(Name = "returnUrl")]
     public string? ReturnUrl { get; set; }
 
-#pragma warning disable BL0008
+    private LoginModel _loginModel = new();
-    [SupplyParameterFromForm(FormName = "login-form")]
-    private LoginModel _loginModel { get; set; } = new();
-#pragma warning restore BL0008
     private string? _errorMessage;
     private bool _isSubmitting;
     private bool _showPassword;

src/NexusReader.UI.Shared/Pages/Account/Profile.razor

@@ -4,10 +4,8 @@
 @using NexusReader.UI.Shared.Services
 @using NexusReader.UI.Shared.Components.Atoms
 @attribute [Authorize]
-@using NexusReader.Domain.Enums
 @inject IIdentityService IdentityService
 @inject NavigationManager NavigationManager
-@inject IThemeService ThemeService
 
 <div class="profile-page-container">
     <div class="background-radial"></div>
@@ -99,31 +97,6 @@
                         </div>
                     </div>
                 </div>
-
-                <!-- Theme Preferences Card -->
-                <div class="metric-card glass-panel full-width theme-preference-card">
-                    <div class="card-header">
-                        <NexusIcon Name="settings" Size="24" Color="#10b981" />
-                        <h3>Preferencje Wizualne</h3>
-                    </div>
-                    <div class="card-body theme-selector-layout">
-                        <p class="theme-description">Wybierz profil wizualny systemu zoptymalizowany dla Twojego urządzenia i warunków czytania.</p>
-                        <div class="theme-options">
-                            <button class="theme-option-btn @(ThemeService.Mode == ThemeMode.System ? "active" : "")" @onclick="() => ChangeTheme(ThemeMode.System)">
-                                <NexusIcon Name="cpu" Size="16" />
-                                <span>Systemowy</span>
-                            </button>
-                            <button class="theme-option-btn @(ThemeService.Mode == ThemeMode.Dark ? "active" : "")" @onclick="() => ChangeTheme(ThemeMode.Dark)">
-                                <NexusIcon Name="moon" Size="16" />
-                                <span>Modern Deep Dark</span>
-                            </button>
-                            <button class="theme-option-btn @(ThemeService.Mode == ThemeMode.LightSepia ? "active" : "")" @onclick="() => ChangeTheme(ThemeMode.LightSepia)">
-                                <NexusIcon Name="sun" Size="16" />
-                                <span>Warm Sepia</span>
-                            </button>
-                        </div>
-                    </div>
-                </div>
             </div>
         </div>
     }
@@ -137,7 +110,6 @@
 
     protected override async Task OnInitializedAsync()
     {
-        await ThemeService.InitializeAsync();
         var result = await IdentityService.GetProfileAsync();
         if (result.IsSuccess) 
         {
@@ -146,12 +118,6 @@
         StateHasChanged();
     }
 
-    private async Task ChangeTheme(ThemeMode mode)
-    {
-        await ThemeService.SetThemeAsync(mode);
-        StateHasChanged();
-    }
-
     private int CalculateProgress()
     {
         if (_profile == null || _profile.AITokenLimit == 0) return 0;

src/NexusReader.UI.Shared/Pages/Account/Profile.razor.css

@@ -2,8 +2,8 @@
     position: relative;
     width: 100%;
     min-height: 100vh;
-    background-color: var(--bg-base);
+    background-color: #121214;
-    color: var(--text-main);
+    color: #e4e4e7;
     overflow-x: hidden;
     display: flex;
     justify-content: center;
@@ -26,7 +26,7 @@
 .mesh-overlay {
     position: absolute;
     top: 0; left: 0; width: 100%; height: 100%;
-    background-image: radial-gradient(circle at 1px 1px, var(--border) 1px, transparent 0);
+    background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.02) 1px, transparent 0);
     background-size: 32px 32px;
     z-index: 1;
 }
@@ -63,7 +63,7 @@
 .avatar-inner {
     width: 120px;
     height: 120px;
-    background: var(--bg-surface);
+    background: #1a1a1e;
     border: 2px solid #10b981;
     border-radius: 50%;
     display: flex;
@@ -98,7 +98,7 @@
     font-weight: 700;
     margin: 0;
     letter-spacing: -0.01em;
-    color: var(--text-main);
+    color: #ffffff;
 }
 
 .system-rank {
@@ -120,17 +120,17 @@
 
 .glass-panel {
     padding: 32px;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 12px;
     transition: all 0.3s ease;
 }
 
 .glass-panel:hover {
-    border-color: var(--accent);
+    border-color: rgba(16, 185, 129, 0.2);
     transform: translateY(-4px);
-    background: var(--bg-surface);
+    background: #1e1e24;
-    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
+    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
 }
 
 .metric-card {
@@ -154,7 +154,7 @@
     font-weight: 600;
     text-transform: uppercase;
     letter-spacing: 0.1em;
-    color: var(--text-muted);
+    color: #a0aec0;
     margin: 0;
 }
 
@@ -177,14 +177,14 @@
     gap: 8px;
 }
 
-.usage-values .current { font-size: 2.5rem; font-weight: 800; color: var(--text-main); line-height: 1; }
+.usage-values .current { font-size: 2.5rem; font-weight: 800; color: #fff; line-height: 1; }
-.usage-values .separator { font-size: 1.2rem; color: var(--border); }
+.usage-values .separator { font-size: 1.2rem; color: #4a5568; }
-.usage-values .total { font-size: 1.2rem; color: var(--text-muted); font-weight: 600; }
+.usage-values .total { font-size: 1.2rem; color: #718096; font-weight: 600; }
 
 .usage-progress {
     width: 100%;
     height: 6px;
-    background: var(--border);
+    background: rgba(255, 255, 255, 0.05);
     border-radius: 10px;
     overflow: hidden;
 }
@@ -198,7 +198,7 @@
 
 .metric-label {
     font-size: 0.75rem;
-    color: var(--text-muted);
+    color: #718096;
     text-transform: uppercase;
     letter-spacing: 0.05em;
 }
@@ -218,7 +218,7 @@
 
 .score-label {
     font-size: 0.75rem;
-    color: var(--text-muted);
+    color: #718096;
     text-transform: uppercase;
     margin-top: 4px;
 }
@@ -229,11 +229,11 @@
     align-items: center;
     gap: 8px;
     padding: 10px 16px;
-    background: var(--bg-base);
+    background: rgba(16, 185, 129, 0.05);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(16, 185, 129, 0.1);
     border-radius: 12px;
     font-size: 0.85rem;
-    color: var(--text-main);
+    color: #cbd5e0;
 }
 
 .truncate {
@@ -273,9 +273,9 @@
 }
 
 .plan-badge.free {
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.05);
-    color: var(--text-muted);
+    color: #a1a1aa;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.1);
 }
 
 .tenant-tag {
@@ -348,111 +348,3 @@
     .btn-nexus { width: 100%; justify-content: center; }
     .username { font-size: 2.2rem; }
 }
-
-/* Theme Preference Card Styles */
-.theme-preference-card {
-    margin-top: 12px;
-}
-
-.theme-description {
-    font-size: 0.9rem;
-    color: var(--text-muted);
-    margin: 0 0 16px 0;
-}
-
-.theme-options {
-    display: flex;
-    gap: 16px;
-    width: 100%;
-}
-
-.theme-option-btn {
-    flex: 1;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: 8px;
-    padding: 14px 20px;
-    background: var(--bg-base);
-    border: 1px solid var(--border);
-    border-radius: 8px;
-    color: var(--text-muted);
-    font-size: 0.9rem;
-    font-weight: 600;
-    cursor: pointer;
-    transition: all 0.2s ease;
-}
-
-.theme-option-btn:hover {
-    background: rgba(0, 0, 0, 0.04);
-    color: var(--text-main);
-}
-
-.theme-option-btn.active {
-    background: rgba(16, 185, 129, 0.1);
-    color: #10b981;
-    border-color: #10b981;
-    box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
-}
-
-@media (max-width: 768px) {
-    .theme-options {
-        flex-direction: column;
-    }
-}
-
-/* ============================================
-   Light Theme Overrides — Warm Paper / Soft Sepia
-   ============================================ */
-
-/* Background radial — warmer, slightly stronger glow */
-.theme-light .background-radial {
-    background: radial-gradient(circle, rgba(16, 185, 129, 0.04) 0%, transparent 70%);
-}
-
-/* Avatar — keep green accent, reduce glow intensity */
-.theme-light .avatar-inner {
-    box-shadow: 0 0 20px rgba(16, 185, 129, 0.12), inset 0 0 15px rgba(16, 185, 129, 0.05);
-}
-
-/* Avatar glow ring — softer border */
-.theme-light .avatar-glow {
-    border-color: rgba(16, 185, 129, 0.2);
-}
-
-/* Glass panel hover — warm sepia shadow instead of pure black */
-.theme-light .glass-panel:hover {
-    box-shadow: 0 10px 30px rgba(139, 130, 115, 0.12);
-}
-
-/* Progress bar — reduce neon glow */
-.theme-light .progress-bar {
-    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
-}
-
-/* Decorative text — dark ink on light bg instead of light on dark */
-.theme-light .decoration {
-    color: rgba(0, 0, 0, 0.04);
-}
-
-/* Tenant tag — warm stone gray */
-.theme-light .tenant-tag {
-    color: #78716c;
-}
-
-/* Loader — disable neon drop-shadow, softer border */
-.theme-light .nexus-loader {
-    border-color: rgba(16, 185, 129, 0.15);
-    border-top-color: #10b981;
-    filter: none;
-}
-
-/* Theme option active — reduce glow in light mode */
-.theme-light .theme-option-btn.active {
-    box-shadow: 0 0 10px rgba(16, 185, 129, 0.1);
-}
-
-/* Progress bar track — light stone gray */
-.theme-light .usage-progress {
-    background: #e4e1d9;
-}

src/NexusReader.UI.Shared/Pages/Account/Register.razor

@@ -21,7 +21,7 @@
             <p class="auth-subtitle">Utwórz nowe konto</p>
         </div>
 
-        <EditForm FormName="register-form" Model="@_registerModel" OnValidSubmit="HandleRegister" class="auth-form">
+        <EditForm Model="@_registerModel" OnValidSubmit="HandleRegister" class="auth-form">
             <DataAnnotationsValidator />
 
             <div class="field-group">
@@ -71,17 +71,14 @@
     </div>
 </div>
 
-<form @formname="hidden-register-login-form" id="nexusLoginForm" method="post" action="/account/login-form" style="display:none">
+<form id="nexusLoginForm" method="post" action="/account/login-form" style="display:none">
     <input type="hidden" name="email" value="@_registerModel.Email" />
     <input type="hidden" name="password" value="@_registerModel.Password" />
     <input type="hidden" name="rememberMe" value="false" />
 </form>
 
 @code {
-#pragma warning disable BL0008
+    private RegisterModel _registerModel = new();
-    [SupplyParameterFromForm(FormName = "register-form")]
-    private RegisterModel _registerModel { get; set; } = new();
-#pragma warning restore BL0008
     private string? _errorMessage;
     private bool _isSubmitting;
 

src/NexusReader.UI.Shared/Pages/Catalog.razor

@@ -4,13 +4,11 @@
 @using NexusReader.UI.Shared.Components.Organisms
 @using NexusReader.Application.DTOs.User
 @using NexusReader.UI.Shared.Services
-@using Microsoft.Extensions.Logging
 @using System.Net.Http.Json
 @inject HttpClient Http
 @inject IReaderNavigationService ReaderNavigation
 @inject NavigationManager NavigationManager
 @inject ILibraryStateService LibraryStateService
-@inject ILogger<Catalog> Logger
 
 <div class="catalog-page">
     <header class="catalog-header">
@@ -223,7 +221,7 @@
         }
         catch (Exception ex)
         {
-            Logger.LogError(ex, "[Catalog] Failed to load books.");
+            Console.WriteLine($"[Catalog] Failed to load books: {ex.Message}");
             if (OperatingSystem.IsBrowser())
             {
                 _isLoading = false;

src/NexusReader.UI.Shared/Pages/Catalog.razor.css

@@ -14,13 +14,13 @@
     font-size: 2.5rem;
     font-weight: 700;
     margin: 0 0 0.5rem 0;
-    color: var(--text-main);
+    color: #ffffff;
     letter-spacing: -0.5px;
 }
 
 .catalog-header .subtitle {
     font-size: 1rem;
-    color: var(--text-muted);
+    color: #a1a1aa;
     margin: 0;
 }
 
@@ -38,27 +38,27 @@
     height: 100%;
     overflow: hidden;
     border-radius: 12px;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
     position: relative;
 }
 
 .course-card:hover {
     transform: translateY(-4px);
-    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
+    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
-    border-color: var(--accent);
+    border-color: rgba(16, 185, 129, 0.2);
 }
 
 .card-cover-container {
     position: relative;
     height: 200px;
-    background: rgba(0, 0, 0, 0.05);
+    background: rgba(0, 0, 0, 0.2);
     overflow: hidden;
     display: flex;
     align-items: center;
     justify-content: center;
-    border-bottom: 1px solid var(--border);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
 }
 
 .card-cover {
@@ -147,9 +147,8 @@
     align-self: flex-start;
     font-size: 0.7rem;
     font-weight: 700;
-    color: var(--text-muted);
+    color: #a1a1aa;
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.05);
-    border: 1px solid var(--border);
     padding: 0.2rem 0.5rem;
     border-radius: 4px;
     text-transform: uppercase;
@@ -176,21 +175,21 @@
     font-size: 1.25rem;
     font-weight: 600;
     margin: 0 0 0.4rem 0;
-    color: var(--text-main);
+    color: #ffffff;
     line-height: 1.3;
     font-family: var(--nexus-font-sans, "Outfit", sans-serif);
 }
 
 .course-author {
     font-size: 0.85rem;
-    color: var(--text-muted);
+    color: #a1a1aa;
     margin: 0 0 1rem 0;
 }
 
 .course-desc {
     font-size: 0.88rem;
     line-height: 1.5;
-    color: var(--text-muted);
+    color: #a1a1aa;
     margin: 0 0 1.5rem 0;
     display: -webkit-box;
     -webkit-line-clamp: 3;
@@ -205,8 +204,8 @@
     justify-content: space-between;
     align-items: center;
     font-size: 0.8rem;
-    color: var(--text-muted);
+    color: #a1a1aa;
-    border-top: 1px solid var(--border);
+    border-top: 1px solid rgba(255, 255, 255, 0.05);
     padding-top: 0.75rem;
 }
 
@@ -257,14 +256,14 @@
     border-radius: 12px;
     overflow: hidden;
     height: 440px;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     opacity: 0.6;
 }
 
 .skeleton-cover {
     height: 200px;
-    background: linear-gradient(90deg, var(--bg-base) 25%, var(--border) 50%, var(--bg-base) 75%);
+    background: linear-gradient(90deg, rgba(255,255,255,0.02) 25%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.02) 75%);
     background-size: 200% 100%;
     animation: loading 1.5s infinite;
 }
@@ -277,7 +276,7 @@
 }
 
 .skeleton-line {
-    background: linear-gradient(90deg, var(--bg-base) 25%, var(--border) 50%, var(--bg-base) 75%);
+    background: linear-gradient(90deg, rgba(255,255,255,0.02) 25%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.02) 75%);
     background-size: 200% 100%;
     animation: loading 1.5s infinite;
     border-radius: 4px;
@@ -315,9 +314,9 @@
     gap: 1.25rem;
     padding: 1.25rem 2.25rem;
     border-radius: 40px;
-    background: var(--bg-surface);
+    background: rgba(13, 13, 15, 0.85);
     backdrop-filter: blur(16px);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.08);
     animation: scaleIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
 }
 
@@ -333,7 +332,7 @@
 
 .loader-text {
     font-weight: 500;
-    color: var(--text-main);
+    color: #ffffff;
     font-size: 0.95rem;
 }
 
@@ -357,54 +356,3 @@
     from { transform: translate(-50%, -50%) scale(0.9); opacity: 0; }
     to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
 }
-
-/* ============================================
-   LIGHT THEME OVERRIDES — Warm Paper / Soft Sepia
-   ============================================ */
-
-.theme-light .course-card:hover {
-    box-shadow: 0 12px 30px rgba(139, 130, 115, 0.15);
-}
-
-.theme-light .card-cover-container {
-    background: rgba(0, 0, 0, 0.03);
-}
-
-.theme-light .cover-overlay {
-    background: rgba(0, 0, 0, 0.5);
-}
-
-.theme-light .course-card:hover .start-action {
-    color: #292524;
-}
-
-.theme-light .dotnet-gradient,
-.theme-light .blazor-gradient,
-.theme-light .graph-gradient {
-    background: #e4e1d9;
-}
-
-.theme-light .cover-code-text {
-    color: var(--text-main);
-    text-shadow: none;
-}
-
-@media (max-width: 767px) {
-    .catalog-page {
-        padding: 1.5rem 1rem calc(1.5rem + 72px + env(safe-area-inset-bottom, 0px)) !important;
-    }
-    
-    .catalog-header {
-        margin-bottom: 1.5rem;
-    }
-    
-    .catalog-header h1 {
-        font-size: 1.75rem;
-    }
-    
-    .catalog-grid, .loading-grid {
-        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
-        gap: 1.25rem;
-    }
-}
-

src/NexusReader.UI.Shared/Pages/ConceptsDashboard.razor.css

@@ -17,11 +17,11 @@
     align-items: center;
     gap: 2rem;
     padding: 1.25rem 2rem;
-    background: var(--bg-surface);
+    background: rgba(20, 20, 20, 0.35);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 16px;
     backdrop-filter: blur(12px);
-    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
+    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
 }
 
 .header-back .btn-back {
@@ -30,22 +30,22 @@
 }
 
 .header-back .btn-back:hover {
-    border-color: var(--accent);
+    border-color: var(--nexus-neon);
-    color: var(--accent);
+    color: var(--nexus-neon);
-    background: var(--accent-glow);
+    background: var(--nexus-primary-glow);
-    box-shadow: 0 0 10px var(--accent-glow);
+    box-shadow: 0 0 10px var(--nexus-primary-glow);
 }
 
 .header-title h1 {
     margin: 0;
     font-size: 1.5rem;
     font-weight: 700;
-    color: var(--text-main);
+    color: #fff;
 }
 
 .header-title .subtitle {
     font-size: 0.85rem;
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.4);
 }
 
 .header-actions .btn-action {
@@ -56,7 +56,7 @@
 }
 
 .header-actions .btn-action:hover {
-    box-shadow: 0 0 20px var(--accent-glow);
+    box-shadow: 0 0 20px var(--nexus-primary-glow);
 }
 
 /* Grid Layout */
@@ -73,26 +73,28 @@
     flex-direction: column;
     overflow: hidden;
     padding: 0;
-    background: var(--bg-surface);
-    border: 1px solid var(--border);
-    border-radius: var(--radius-xl, 16px);
 }
 
 .pane-header {
     padding: 1.25rem 1.5rem;
-    border-bottom: 1px solid var(--border);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
 }
 
 .pane-header h3 {
     margin: 0;
     font-size: 1rem;
     font-weight: 600;
-    color: var(--text-main);
+    color: #fff;
     display: flex;
     align-items: center;
     gap: 0.5rem;
 }
 
+.pane-content {
+    flex-grow: 1;
+    overflow: hidden;
+}
+
 /* Loading, Error and Empty States */
 .loading-state, .error-state, .empty-dashboard-state {
     display: flex;
@@ -116,15 +118,15 @@
 }
 
 .neon-pulse {
-    color: var(--accent);
+    color: var(--nexus-neon);
-    filter: drop-shadow(0 0 10px var(--accent-glow));
+    filter: drop-shadow(0 0 10px var(--nexus-neon));
     animation: robot-pulse 2s infinite ease-in-out;
 }
 
 @keyframes robot-pulse {
-    0% { transform: scale(1); filter: drop-shadow(0 0 10px var(--accent-glow)); }
+    0% { transform: scale(1); filter: drop-shadow(0 0 10px var(--nexus-neon)); }
-    50% { transform: scale(1.08); filter: drop-shadow(0 0 25px var(--accent-glow)); }
+    50% { transform: scale(1.08); filter: drop-shadow(0 0 25px var(--nexus-neon)); }
-    100% { transform: scale(1); filter: drop-shadow(0 0 10px var(--accent-glow)); }
+    100% { transform: scale(1); filter: drop-shadow(0 0 10px var(--nexus-neon)); }
 }
 
 .scan-line {
@@ -133,8 +135,8 @@
     left: 0;
     width: 100%;
     height: 2px;
-    background: var(--accent);
+    background: var(--nexus-neon);
-    box-shadow: 0 0 15px var(--accent);
+    box-shadow: 0 0 15px var(--nexus-neon);
     animation: scan 2s infinite linear;
     opacity: 0.8;
 }
@@ -147,7 +149,7 @@
 
 .loading-text {
     font-size: 0.95rem;
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.7);
     margin-top: 1rem;
     letter-spacing: 0.05em;
 }
@@ -162,18 +164,17 @@
 }
 
 .dim-icon {
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.15);
-    opacity: 0.4;
 }
 
 .empty-dashboard-state h2, .error-state h3 {
-    color: var(--text-main);
+    color: #fff;
     margin: 0 0 0.75rem 0;
     font-weight: 600;
 }
 
 .empty-dashboard-state p, .error-state p {
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.45);
     font-size: 0.88rem;
     line-height: 1.5;
     margin: 0 0 2rem 0;
@@ -188,25 +189,25 @@
     flex-grow: 1;
     padding: 3rem;
     text-align: center;
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.4);
 }
 
 .empty-glowing-brain {
     width: 80px;
     height: 80px;
     border-radius: 50%;
-    background: var(--accent-glow);
+    background: rgba(0, 255, 153, 0.04);
-    border: 1px solid var(--accent);
+    border: 1px solid rgba(0, 255, 153, 0.15);
     display: flex;
     align-items: center;
     justify-content: center;
     margin-bottom: 1.5rem;
-    box-shadow: 0 0 20px var(--accent-glow);
+    box-shadow: 0 0 20px var(--nexus-primary-glow);
 }
 
 .workspace-empty h4 {
     margin: 0 0 0.75rem 0;
-    color: var(--text-main);
+    color: #fff;
     font-size: 1.1rem;
     font-weight: 600;
 }
@@ -226,7 +227,7 @@
 
 .workspace-header {
     padding: 1.5rem;
-    border-bottom: 1px solid var(--border);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
 }
 
 .node-meta {
@@ -241,7 +242,7 @@
     font-size: 0.75rem;
     font-weight: 700;
     letter-spacing: 0.08em;
-    color: var(--accent);
+    color: var(--nexus-neon);
 }
 
 .badge {
@@ -255,22 +256,22 @@
 }
 
 .badge-unlocked {
-    background: var(--accent-glow);
+    background: rgba(0, 255, 153, 0.08);
-    color: var(--accent);
+    color: var(--nexus-neon);
-    border: 1px solid var(--accent);
+    border: 1px solid rgba(0, 255, 153, 0.2);
 }
 
 .badge-locked {
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.05);
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.4);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
 }
 
 .workspace-title {
     margin: 0;
     font-size: 1.4rem;
     font-weight: 700;
-    color: var(--text-main);
+    color: #fff;
 }
 
 .workspace-body {
@@ -290,22 +291,22 @@
     background: transparent;
 }
 .workspace-body::-webkit-scrollbar-thumb {
-    background: var(--border);
+    background: rgba(255, 255, 255, 0.08);
     border-radius: 3px;
 }
 .workspace-body::-webkit-scrollbar-thumb:hover {
-    background: var(--accent);
+    background: var(--nexus-neon);
 }
 
 .locked-warning {
     display: flex;
     flex-direction: row;
     gap: 1rem;
-    background: rgba(217, 119, 6, 0.05);
+    background: rgba(255, 171, 0, 0.04);
-    border: 1px solid rgba(217, 119, 6, 0.15);
+    border: 1px solid rgba(255, 171, 0, 0.15);
     border-radius: 8px;
     padding: 1rem;
-    color: var(--text-main);
+    color: rgba(255, 255, 255, 0.85);
 }
 
 .lock-warning-icon {
@@ -325,14 +326,14 @@
     margin: 0;
     font-size: 0.8rem;
     line-height: 1.4;
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.55);
 }
 
 .metadata-section h4 {
     margin: 0 0 0.5rem 0;
     font-size: 0.85rem;
     font-weight: 600;
-    color: var(--text-muted);
+    color: #aaa;
     display: flex;
     align-items: center;
     gap: 0.35rem;
@@ -344,12 +345,12 @@
     margin: 0;
     font-size: 0.88rem;
     line-height: 1.6;
-    color: var(--text-main);
+    color: rgba(255, 255, 255, 0.7);
 }
 
 .summary-box {
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.02);
-    border-left: 3px solid var(--accent);
+    border-left: 3px solid var(--nexus-neon);
     border-radius: 0 8px 8px 0;
     padding: 1rem;
     margin-top: 0.25rem;
@@ -364,9 +365,9 @@
 
 .term-pill {
     font-size: 0.75rem;
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.03);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.6);
     padding: 0.3rem 0.75rem;
     border-radius: 20px;
     font-weight: 500;
@@ -374,14 +375,14 @@
 }
 
 .term-pill:hover {
-    border-color: var(--accent);
+    border-color: rgba(0, 255, 153, 0.2);
-    color: var(--accent);
+    color: var(--nexus-neon);
-    background: var(--accent-glow);
+    background: rgba(0, 255, 153, 0.03);
 }
 
 .workspace-footer {
     padding: 1.25rem 1.5rem;
-    border-top: 1px solid var(--border);
+    border-top: 1px solid rgba(255, 255, 255, 0.05);
 }
 
 @media (max-width: 1024px) {
@@ -402,68 +403,3 @@
         justify-content: center;
     }
 }
-
-/* ============================================
-   Light Theme Overrides — Warm Paper / Soft Sepia
-   ============================================ */
-
-/* Dashboard header — warm sepia shadow instead of pure black */
-.theme-light .dashboard-header {
-    box-shadow: 0 4px 30px rgba(139, 130, 115, 0.05);
-}
-
-/* Neon pulse icon — disable glow filter entirely */
-.theme-light .neon-pulse {
-    filter: none;
-}
-
-/* Override the neon pulse keyframe states in light mode */
-.theme-light .neon-pulse {
-    animation-name: robot-pulse-light;
-}
-
-@keyframes robot-pulse-light {
-    0% { transform: scale(1); filter: none; }
-    50% { transform: scale(1.08); filter: none; }
-    100% { transform: scale(1); filter: none; }
-}
-
-/* Scan line — reduce glow intensity */
-.theme-light .scan-line {
-    box-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
-    opacity: 0.5;
-}
-
-/* Glowing brain empty state — subtle warm glow */
-.theme-light .empty-glowing-brain {
-    box-shadow: 0 0 12px rgba(16, 185, 129, 0.1);
-}
-
-/* Error icon — reduce drop-shadow intensity */
-.theme-light .error-icon {
-    filter: drop-shadow(0 0 4px rgba(255, 74, 74, 0.2));
-}
-
-/* Back button hover — warm glow instead of neon */
-.theme-light .header-back .btn-back:hover {
-    box-shadow: 0 0 8px rgba(16, 185, 129, 0.1);
-}
-
-/* Action button hover — warm glow */
-.theme-light .header-actions .btn-action:hover {
-    box-shadow: 0 0 12px rgba(16, 185, 129, 0.1);
-}
-
-@media (max-width: 767px) {
-    .concepts-dashboard-container {
-        padding: 1rem 0.75rem calc(1.5rem + 72px + env(safe-area-inset-bottom, 0px)) !important;
-        gap: 1rem;
-    }
-    .dashboard-header {
-        padding: 1rem;
-        gap: 0.75rem;
-    }
-    .header-title h1 {
-        font-size: 1.25rem;
-    }
-}

src/NexusReader.UI.Shared/Pages/CreatorDashboard.razor

@@ -1,542 +0,0 @@
-@page "/creator"
-@attribute [Authorize]
-@using System.Net.Http.Json
-@using Microsoft.Extensions.Logging
-@using System.ComponentModel.DataAnnotations
-@using NexusReader.Application.DTOs.Creator
-@inject HttpClient Http
-@inject NavigationManager NavigationManager
-@inject ILogger<CreatorDashboard> Logger
-
-<PageTitle>Creator Dashboard | Nexus Reader</PageTitle>
-
-<div class="dashboard-container">
-    <header class="dashboard-header">
-        <div class="header-visual">
-            <h1 class="dashboard-title">Panel Autora</h1>
-            <p class="subtitle">Monitoruj zaangażowanie czytelników i publikuj wersje zamrożone z poziomu kontroli wersji.</p>
-        </div>
-    </header>
-
-    <main class="dashboard-content">
-        <!-- Metrics Section -->
-        <section class="metrics-grid">
-            @if (_isLoading)
-            {
-                @for (int i = 0; i < 4; i++)
-                {
-                    <div class="metric-card skeleton-card">
-                        <div class="skeleton-line label"></div>
-                        <div class="skeleton-line value"></div>
-                    </div>
-                }
-            }
-            else if (_dashboardData != null)
-            {
-                <div class="metric-card glass-panel">
-                    <span class="metric-label">Całkowite Odczyty</span>
-                    <h2 class="metric-value">@_dashboardData.Metrics.TotalReads</h2>
-                    <div class="metric-trend positive">
-                        <span class="trend-icon">↑</span>
-                        <span class="trend-text">System stabilny</span>
-                    </div>
-                </div>
-
-                <div class="metric-card glass-panel">
-                    <span class="metric-label">Średni Czas Czytania</span>
-                    <h2 class="metric-value">@_dashboardData.Metrics.AvgReadTimeMinutes min</h2>
-                    <div class="metric-trend neutral">
-                        <span class="trend-icon">→</span>
-                        <span class="trend-text">Na rozdział</span>
-                    </div>
-                </div>
-
-                <div class="metric-card glass-panel">
-                    <div class="metric-label-container">
-                        <span class="metric-label">Aktywni Czytelnicy</span>
-                        <div class="pulse-indicator">
-                            <span class="pulse-dot"></span>
-                            <span class="pulse-text">Live Now</span>
-                        </div>
-                    </div>
-                    <h2 class="metric-value">@_dashboardData.Metrics.ActiveReaders</h2>
-                    <div class="metric-trend positive">
-                        <span class="trend-icon">↑</span>
-                        <span class="trend-text">Ruch w czasie rzeczywistym</span>
-                    </div>
-                </div>
-
-                <div class="metric-card glass-panel">
-                    <span class="metric-label">Przychód Gross</span>
-                    <h2 class="metric-value">@_dashboardData.Metrics.GrossRevenue.ToString("C2")</h2>
-                    <div class="metric-trend positive">
-                        <span class="trend-icon">↑</span>
-                        <span class="trend-text">Rozliczenia w toku</span>
-                    </div>
-                </div>
-            }
-        </section>
-
-        <!-- Publication Cards Grid Section -->
-        <section class="publications-section">
-            <div class="section-header">
-                <h2>Twoje Publikacje</h2>
-                <button type="button" class="btn-nexus primary glow-btn" @onclick="OpenCreateBookModal">
-                    [ + Nowa Publikacja ]
-                </button>
-            </div>
-
-            @if (_isLoading)
-            {
-                <div class="books-grid">
-                    @for (int i = 0; i < 3; i++)
-                    {
-                        <div class="book-card skeleton-card">
-                            <div class="skeleton-card-header"></div>
-                            <div class="skeleton-line title"></div>
-                            <div class="skeleton-line metadata"></div>
-                            <div class="skeleton-card-actions"></div>
-                        </div>
-                    }
-                </div>
-            }
-            else if (_dashboardData == null || !_dashboardData.Books.Any())
-            {
-                <div class="empty-state glass-panel">
-                    <div class="empty-icon">
-                        <svg width="64" height="64" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
-                            <path d="M4 19.5A2.5 2.5 0 0 1 6.5 17H20"></path>
-                            <path d="M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z"></path>
-                        </svg>
-                    </div>
-                    <h3>Brak publikacji</h3>
-                    <p>Nie utworzyłeś jeszcze żadnych książek do autorskiej edycji.</p>
-                    <button type="button" class="btn-nexus primary glow-btn" style="margin-top: 1.5rem;" @onclick="OpenCreateBookModal">
-                        [ + Nowa Publikacja ]
-                    </button>
-                </div>
-            }
-            else
-            {
-                <div class="books-grid">
-                    @foreach (var book in _dashboardData.Books)
-                    {
-                        <div class="book-card glass-panel">
-                            <div class="card-glow"></div>
-                            <div class="book-card-header">
-                                <h3 class="book-title" title="@book.Title">@book.Title</h3>
-                                <div class="badges-row">
-                                    @if (book.LivePublishedRevision != null)
-                                    {
-                                        <span class="badge badge-published" title="Opublikowana wersja dostępna dla czytelników">
-                                            Live @book.LivePublishedRevision.VersionString
-                                        </span>
-                                    }
-                                    @if (book.CurrentDraftRevision != null)
-                                    {
-                                        <span class="badge badge-draft pulsing" title="Szkic roboczy z nieopublikowanymi zmianami">
-                                            Szkic
-                                        </span>
-                                    }
-                                </div>
-                            </div>
-
-                            <div class="book-telemetry">
-                                <div class="telemetry-item">
-                                    <span class="telemetry-label">Słowa:</span>
-                                    <span class="telemetry-value">@book.WordCount.ToString("N0")</span>
-                                </div>
-                                <div class="telemetry-item">
-                                    <span class="telemetry-label">Wyświetlenia:</span>
-                                    <span class="telemetry-value">@book.AggregatedReads.ToString("N0")</span>
-                                </div>
-                            </div>
-
-                            <div class="book-card-actions">
-                                <button type="button" class="btn-nexus secondary" @onclick="() => NavigateToEditor(book)">
-                                    Edytuj szkic
-                                </button>
-                                <button type="button" class="btn-nexus primary glow-btn" @onclick="() => OpenPublishModal(book)">
-                                    Publikuj
-                                </button>
-                                <button type="button" class="btn-nexus link-btn" @onclick="() => OpenRevisionsModalAsync(book)">
-                                    Rejestr zmian
-                                </button>
-                            </div>
-                        </div>
-                    }
-                </div>
-            }
-        </section>
-    </main>
-</div>
-
-<!-- Defensively-Scoped Version Publish Modal -->
-@if (_isPublishModalOpen && _activePublishBookId.HasValue)
-{
-    <div class="modal-backdrop" @onclick="ClosePublishModal">
-        <div class="modal-content glass-panel" @onclick:stopPropagation>
-            <div class="modal-header">
-                <h3>Publikowanie Nowej Wersji</h3>
-                <button class="close-btn" @onclick="ClosePublishModal">&times;</button>
-            </div>
-            <div class="modal-body">
-                <p>Zamrażasz obecny szkic książki <strong>@_activePublishBookTitle</strong> jako nową wersję publiczną.</p>
-                <div class="form-group">
-                    <label for="versionInput">Sygnatura Wersji (np. v1.0.0)</label>
-                    <input id="versionInput" type="text" class="form-control" @bind="_customVersionString" @bind:event="oninput" placeholder="Wpisz tag wersji..." />
-                </div>
-                @if (!string.IsNullOrEmpty(_errorMessage))
-                {
-                    <div class="error-banner">@_errorMessage</div>
-                }
-            </div>
-            <div class="modal-footer">
-                <button type="button" class="btn-nexus secondary" @onclick="ClosePublishModal">Anuluj</button>
-                <button type="button" class="btn-nexus primary glow-btn" @onclick="SubmitPublishVersionAsync" disabled="@_isSubmitting">
-                    @(_isSubmitting ? "Wysyłanie..." : "Zatwierdź wersję")
-                </button>
-            </div>
-        </div>
-    </div>
-}
-
-<!-- Manage Revisions Modal -->
-@if (_isRevisionsModalOpen && _activeRevisionsBookId.HasValue)
-{
-    <div class="modal-backdrop" @onclick="CloseRevisionsModal">
-        <div class="modal-content glass-panel" @onclick:stopPropagation>
-            <div class="modal-header">
-                <h3>Rejestr Rewizji: @_activeRevisionsBookTitle</h3>
-                <button class="close-btn" @onclick="CloseRevisionsModal">&times;</button>
-            </div>
-            <div class="modal-body">
-                @if (_revisionsLoading)
-                {
-                    <div class="spinner-container">
-                        <div class="spinner-glow small"></div>
-                        <span>Wczytywanie historii...</span>
-                    </div>
-                }
-                else if (_revisionsList == null || !_revisionsList.Any())
-                {
-                    <p class="empty-revisions">Brak zarejestrowanych rewizji.</p>
-                }
-                else
-                {
-                    <div class="revisions-list">
-                        @foreach (var revision in _revisionsList)
-                        {
-                            <div class="revision-item">
-                                <div class="revision-header">
-                                    <span class="revision-tag @(revision.IsPublished ? "published" : "draft")">
-                                        @(revision.IsPublished ? revision.VersionString : "Szkic roboczy")
-                                    </span>
-                                    <span class="revision-date">
-                                        @(revision.PublishedAt.HasValue ? revision.PublishedAt.Value.ToString("g") : revision.CreatedAt.ToString("g"))
-                                    </span>
-                                </div>
-                                <div class="revision-meta">
-                                    <span>Utworzono: @revision.CreatedAt.ToString("yyyy-MM-dd HH:mm")</span>
-                                </div>
-                            </div>
-                        }
-                    </div>
-                }
-            </div>
-            <div class="modal-footer">
-                <button type="button" class="btn-nexus secondary" @onclick="CloseRevisionsModal">Zamknij</button>
-            </div>
-        </div>
-    </div>
-}
-
-<!-- Create Book Modal -->
-@if (_isCreateBookModalOpen)
-{
-    <div class="modal-backdrop" @onclick="CloseCreateBookModal">
-        <div class="modal-content glass-panel" @onclick:stopPropagation>
-            <div class="modal-header">
-                <h2>Nowa Publikacja</h2>
-                <button class="close-btn" @onclick="CloseCreateBookModal">
-                    <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
-                </button>
-            </div>
-            <EditForm Model="_createBookModel" OnValidSubmit="SubmitCreateBookAsync">
-                <DataAnnotationsValidator />
-                <div class="modal-body">
-                    <div class="creator-layout">
-                        <!-- Book Cover Preview -->
-                        <div class="cover-preview creator-cover">
-                            <div class="cover-mockup-design">
-                                <div class="cover-accent-line"></div>
-                                <div class="cover-main-content">
-                                    <span class="cover-title-text">
-                                        @(string.IsNullOrWhiteSpace(_createBookModel.Title) ? "Tytuł Książki" : _createBookModel.Title)
-                                    </span>
-                                    <span class="cover-author-text">
-                                        Szkic roboczy
-                                    </span>
-                                </div>
-                                <div class="cover-logo-container">
-                                    <svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polygon points="5 3 19 12 5 21 5 3"></polygon></svg>
-                                    <span class="cover-brand">Nexus</span>
-                                </div>
-                            </div>
-                        </div>
-
-                        <!-- Form inputs -->
-                        <div class="creator-form-inputs">
-                            <div class="form-group">
-                                <label for="newBookTitle">Tytuł Książki</label>
-                                <InputText id="newBookTitle" class="form-input" @bind-Value="_createBookModel.Title" placeholder="Wpisz tytuł książki..." />
-                                <ValidationMessage For="@(() => _createBookModel.Title)" class="validation-message" />
-                            </div>
-                            <div class="form-group">
-                                <label for="newBookDescription">Opis (opcjonalny)</label>
-                                <InputTextArea id="newBookDescription" class="form-input" @bind-Value="_createBookModel.Description" rows="3" placeholder="Wpisz krótki opis książki..." />
-                                <ValidationMessage For="@(() => _createBookModel.Description)" class="validation-message" />
-                            </div>
-                            @if (!string.IsNullOrEmpty(_createBookError))
-                            {
-                                <div class="error-banner">@_createBookError</div>
-                            }
-                        </div>
-                    </div>
-                </div>
-                <div class="actions">
-                    <button type="button" class="btn-nexus secondary" @onclick="CloseCreateBookModal">Anuluj</button>
-                    <button type="submit" class="btn-nexus primary glow-btn" disabled="@_isCreatingBook">
-                        @(_isCreatingBook ? "Tworzenie..." : "Utwórz książkę")
-                    </button>
-                </div>
-            </EditForm>
-        </div>
-    </div>
-}
-
-@code {
-    private bool _isLoading = true;
-    private CreatorDashboardDataDto? _dashboardData;
-
-    // Create Book Model and state
-    private bool _isCreateBookModalOpen;
-    private CreateBookModel _createBookModel = new();
-    private bool _isCreatingBook;
-    private string? _createBookError;
-
-    // Defensively-scoped state variables for modal isolation
-    private bool _isPublishModalOpen;
-    private Guid? _activePublishBookId;
-    private string _activePublishBookTitle = string.Empty;
-    private string _customVersionString = string.Empty;
-    private bool _isSubmitting;
-    private string? _errorMessage;
-
-    // Revisions modal state variables
-    private bool _isRevisionsModalOpen;
-    private Guid? _activeRevisionsBookId;
-    private string _activeRevisionsBookTitle = string.Empty;
-    private bool _revisionsLoading;
-    private List<CreatorBookRevisionDto> _revisionsList = new();
-
-    protected override async Task OnAfterRenderAsync(bool firstRender)
-    {
-        if (firstRender)
-        {
-            await LoadDashboardDataAsync();
-        }
-    }
-
-    private async Task LoadDashboardDataAsync()
-    {
-        _isLoading = true;
-        StateHasChanged();
-
-        try
-        {
-            _dashboardData = await Http.GetFromJsonAsync<CreatorDashboardDataDto>("api/creator/dashboard");
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError(ex, "Error loading creator dashboard data.");
-        }
-        finally
-        {
-            _isLoading = false;
-            StateHasChanged();
-        }
-    }
-
-    private void NavigateToEditor(CreatorBookDto book)
-    {
-        if (book.FirstChapterId.HasValue)
-        {
-            NavigationManager.NavigateTo($"/creator/edit/{book.Id}/{book.FirstChapterId.Value}");
-        }
-        else
-        {
-            NavigationManager.NavigateTo($"/creator/edit/{book.Id}");
-        }
-    }
-
-    private void OpenPublishModal(CreatorBookDto book)
-    {
-        // Explicitly lock context boundaries to the selected book
-        _activePublishBookId = book.Id;
-        _activePublishBookTitle = book.Title;
-        _customVersionString = "v1.0.0";
-        _errorMessage = null;
-        _isPublishModalOpen = true;
-    }
-
-    private void ClosePublishModal()
-    {
-        _isPublishModalOpen = false;
-        _activePublishBookId = null;
-        _activePublishBookTitle = string.Empty;
-        _customVersionString = string.Empty;
-        _errorMessage = null;
-    }
-
-    private async Task SubmitPublishVersionAsync()
-    {
-        if (!_activePublishBookId.HasValue || string.IsNullOrWhiteSpace(_customVersionString))
-        {
-            return;
-        }
-
-        _isSubmitting = true;
-        _errorMessage = null;
-        StateHasChanged();
-
-        try
-        {
-            // Explicitly lock the parameters during sending execution
-            var bookId = _activePublishBookId.Value;
-            var response = await Http.PostAsync($"api/creator/books/{bookId}/publish?version={Uri.EscapeDataString(_customVersionString)}", null);
-
-            if (response.IsSuccessStatusCode)
-            {
-                ClosePublishModal();
-                await LoadDashboardDataAsync();
-            }
-            else
-            {
-                _errorMessage = await response.Content.ReadAsStringAsync();
-                if (string.IsNullOrWhiteSpace(_errorMessage))
-                {
-                    _errorMessage = "Publish version endpoint returned an error.";
-                }
-            }
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError(ex, "Exception thrown during publication.");
-            _errorMessage = $"Mutation failed: {ex.Message}";
-        }
-        finally
-        {
-            _isSubmitting = false;
-            StateHasChanged();
-        }
-    }
-
-    private async Task OpenRevisionsModalAsync(CreatorBookDto book)
-    {
-        _activeRevisionsBookId = book.Id;
-        _activeRevisionsBookTitle = book.Title;
-        _revisionsList = new();
-        _revisionsLoading = true;
-        _isRevisionsModalOpen = true;
-        StateHasChanged();
-
-        try
-        {
-            _revisionsList = await Http.GetFromJsonAsync<List<CreatorBookRevisionDto>>($"api/creator/books/{book.Id}/revisions") ?? new();
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError(ex, "Failed to load revisions.");
-        }
-        finally
-        {
-            _revisionsLoading = false;
-            StateHasChanged();
-        }
-    }
-
-    private void CloseRevisionsModal()
-    {
-        _isRevisionsModalOpen = false;
-        _activeRevisionsBookId = null;
-        _activeRevisionsBookTitle = string.Empty;
-        _revisionsList.Clear();
-    }
-
-    private void OpenCreateBookModal()
-    {
-        _createBookModel = new CreateBookModel();
-        _createBookError = null;
-        _isCreateBookModalOpen = true;
-    }
-
-    private void CloseCreateBookModal()
-    {
-        _isCreateBookModalOpen = false;
-        _createBookError = null;
-    }
-
-    private async Task SubmitCreateBookAsync()
-    {
-        _isCreatingBook = true;
-        _createBookError = null;
-        StateHasChanged();
-
-        try
-        {
-            var response = await Http.PostAsJsonAsync("api/creator/books", _createBookModel);
-            if (response.IsSuccessStatusCode)
-            {
-                var result = await response.Content.ReadFromJsonAsync<CreateBookResponseDto>();
-                if (result != null)
-                {
-                    // Reset modal state BEFORE routing to prevent it lingering in the DOM tree
-                    _isCreateBookModalOpen = false;
-                    _createBookError = null;
-                    StateHasChanged();
-
-                    NavigationManager.NavigateTo($"/creator/edit/{result.BookId}");
-                }
-                else
-                {
-                    _createBookError = "Otrzymano nieprawidłową odpowiedź z serwera.";
-                }
-            }
-            else
-            {
-                var errorMsg = await response.Content.ReadAsStringAsync();
-                _createBookError = !string.IsNullOrWhiteSpace(errorMsg) ? errorMsg : "Wystąpił błąd podczas tworzenia książki.";
-            }
-        }
-        catch (Exception ex)
-        {
-            Logger.LogError(ex, "Błąd podczas tworzenia książki.");
-            _createBookError = $"Krytyczny błąd: {ex.Message}";
-        }
-        finally
-        {
-            _isCreatingBook = false;
-            StateHasChanged();
-        }
-    }
-
-    public class CreateBookModel
-    {
-        [Required(ErrorMessage = "Tytuł książki jest wymagany.")]
-        [StringLength(255, ErrorMessage = "Tytuł książki nie może przekraczać 255 znaków.")]
-        public string Title { get; set; } = string.Empty;
-
-        public string? Description { get; set; }
-    }
-}

src/NexusReader.UI.Shared/Pages/CreatorDashboard.razor.css

@@ -1,763 +0,0 @@
-.dashboard-container {
-    min-height: 100%;
-    display: flex;
-    flex-direction: column;
-    animation: fade-in 0.6s cubic-bezier(0.4, 0, 0.2, 1);
-}
-
-@keyframes fade-in {
-    from { opacity: 0; transform: translateY(15px); }
-    to { opacity: 1; transform: translateY(0); }
-}
-
-/* --- Dashboard Header --- */
-.dashboard-header {
-    padding: 3rem 2rem 2rem;
-    background: var(--bg-surface);
-    border-bottom: 1px solid var(--border);
-    position: relative;
-    overflow: hidden;
-}
-
-.dashboard-title {
-    font-family: var(--nexus-font-serif, serif);
-    font-size: 2.25rem;
-    font-weight: 700;
-    color: var(--text-main);
-    margin-bottom: 0.5rem;
-}
-
-.subtitle {
-    font-size: 0.95rem;
-    color: var(--text-muted);
-    max-width: 600px;
-    line-height: 1.5;
-}
-
-/* --- Main Content Layout --- */
-.dashboard-content {
-    padding: 2.5rem 2rem;
-    max-width: 1200px;
-    margin: 0 auto;
-    width: 100%;
-    display: flex;
-    flex-direction: column;
-    gap: 3rem;
-}
-
-/* --- Metrics Grid --- */
-.metrics-grid {
-    display: grid;
-    grid-template-columns: repeat(1, minmax(0, 1fr));
-    gap: 1.5rem;
-}
-
-@media (min-width: 768px) {
-    .metrics-grid {
-        grid-template-columns: repeat(2, minmax(0, 1fr));
-    }
-}
-
-@media (min-width: 1024px) {
-    .metrics-grid {
-        grid-template-columns: repeat(4, minmax(0, 1fr));
-    }
-}
-
-.metric-card {
-    display: flex;
-    flex-direction: column;
-    gap: 0.5rem;
-    padding: 1.5rem;
-    position: relative;
-}
-
-.metric-label-container {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-}
-
-.metric-label {
-    font-size: 0.85rem;
-    font-weight: 500;
-    color: var(--text-muted);
-    text-transform: uppercase;
-    letter-spacing: 0.05em;
-}
-
-.metric-value {
-    font-size: 1.85rem;
-    font-weight: 700;
-    color: var(--text-main);
-    margin: 0.25rem 0;
-}
-
-.metric-trend {
-    display: flex;
-    align-items: center;
-    gap: 0.25rem;
-    font-size: 0.75rem;
-}
-
-.metric-trend.positive {
-    color: var(--nexus-neon);
-}
-
-.metric-trend.neutral {
-    color: var(--text-muted);
-}
-
-/* Glassmorphism Panel styles */
-.glass-panel {
-    background: var(--bg-surface);
-    border: 1px solid var(--border);
-    border-radius: 12px;
-    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
-    backdrop-filter: blur(10px);
-    -webkit-backdrop-filter: blur(10px);
-    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.2s ease, box-shadow 0.2s ease;
-}
-
-.glass-panel:hover {
-    transform: translateY(-4px);
-    border-color: var(--accent);
-    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.06);
-}
-
-/* --- Pulsing indicator --- */
-.pulse-indicator {
-    display: flex;
-    align-items: center;
-    gap: 0.4rem;
-    background: rgba(255, 68, 68, 0.1);
-    border: 1px solid rgba(255, 68, 68, 0.3);
-    border-radius: 100px;
-    padding: 2px 8px;
-}
-
-.pulse-dot {
-    width: 6px;
-    height: 6px;
-    background-color: #ff4444;
-    border-radius: 50%;
-    animation: beacon-pulse 1.8s cubic-bezier(0.4, 0, 0.6, 1) infinite;
-}
-
-.pulse-text {
-    font-size: 0.65rem;
-    font-weight: 700;
-    color: #ff4444;
-    text-transform: uppercase;
-    letter-spacing: 0.05em;
-}
-
-@keyframes beacon-pulse {
-    0%, 100% { opacity: 1; transform: scale(1); }
-    50% { opacity: 0.4; transform: scale(1.3); }
-}
-
-/* --- Publications Section --- */
-.publications-section {
-    display: flex;
-    flex-direction: column;
-    gap: 1.5rem;
-}
-
-.section-header h2 {
-    font-family: var(--nexus-font-serif, serif);
-    font-size: 1.5rem;
-    font-weight: 600;
-    color: var(--text-main);
-    margin: 0;
-}
-
-/* --- Publication Grid & Cards --- */
-.books-grid {
-    display: grid;
-    grid-template-columns: repeat(1, minmax(0, 1fr));
-    gap: 1.5rem;
-}
-
-@media (min-width: 768px) {
-    .books-grid {
-        grid-template-columns: repeat(2, minmax(0, 1fr));
-    }
-}
-
-@media (min-width: 1024px) {
-    .books-grid {
-        grid-template-columns: repeat(3, minmax(0, 1fr));
-    }
-}
-
-.book-card {
-    display: flex;
-    flex-direction: column;
-    justify-content: space-between;
-    gap: 1.5rem;
-    padding: 1.5rem;
-    position: relative;
-    overflow: hidden;
-}
-
-.card-glow {
-    position: absolute;
-    top: 0;
-    left: 0;
-    width: 100%;
-    height: 3px;
-    background: linear-gradient(90deg, var(--border), var(--accent), var(--border));
-    opacity: 0.4;
-}
-
-.book-card:hover .card-glow {
-    opacity: 1;
-    background: linear-gradient(90deg, var(--accent), var(--nexus-neon), var(--accent));
-}
-
-.book-card-header {
-    display: flex;
-    flex-direction: column;
-    gap: 0.75rem;
-}
-
-.book-title {
-    font-size: 1.15rem;
-    font-weight: 600;
-    color: var(--text-main);
-    margin: 0;
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
-}
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-.badges-row {
-    display: flex;
-    flex-wrap: wrap;
-    gap: 0.5rem;
-}
-
-.badge {
-    padding: 0.25rem 0.6rem;
-    border-radius: 6px;
-    font-size: 0.7rem;
-    font-weight: 700;
-    text-transform: uppercase;
-    letter-spacing: 0.05em;
-    border: 1px solid transparent;
-}
-
-.badge-published {
-    background: rgba(16, 185, 129, 0.1);
-    color: var(--nexus-neon);
-    border-color: rgba(16, 185, 129, 0.3);
-}
-
-.badge-draft {
-    background: rgba(245, 158, 11, 0.1);
-    color: #f59e0b;
-    border-color: rgba(245, 158, 11, 0.3);
-}
-
-.badge-draft.pulsing {
-    animation: draft-pulse 2s infinite ease-in-out;
-}
-
-@keyframes draft-pulse {
-    0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.2); }
-    50% { box-shadow: 0 0 8px 2px rgba(245, 158, 11, 0.4); }
-}
-
-.book-telemetry {
-    display: flex;
-    justify-content: space-between;
-    padding: 0.75rem 0;
-    border-top: 1px dashed var(--border);
-    border-bottom: 1px dashed var(--border);
-}
-
-.telemetry-item {
-    display: flex;
-    flex-direction: column;
-    gap: 0.25rem;
-}
-
-.telemetry-label {
-    font-size: 0.75rem;
-    color: var(--text-muted);
-}
-
-.telemetry-value {
-    font-size: 0.95rem;
-    font-weight: 600;
-    color: var(--text-main);
-}
-
-.book-card-actions {
-    display: flex;
-    flex-wrap: wrap;
-    gap: 0.75rem;
-    margin-top: 0.5rem;
-}
-
-.book-card-actions .btn-nexus {
-    flex: 1;
-    min-width: 90px;
-    text-align: center;
-    justify-content: center;
-}
-
-.book-card-actions .link-btn {
-    flex: unset;
-    width: 100%;
-}
-
-/* --- Buttons --- */
-.btn-nexus {
-    padding: 0.6rem 1.1rem;
-    border-radius: 8px;
-    font-size: 0.85rem;
-    font-weight: 600;
-    cursor: pointer;
-    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
-    border: none;
-    display: inline-flex;
-    align-items: center;
-}
-
-.btn-nexus.primary {
-    background: #10b981;
-    color: #000;
-}
-
-.btn-nexus.secondary {
-    background: var(--bg-base);
-    color: var(--text-main);
-    border: 1px solid var(--border);
-}
-
-.btn-nexus.link-btn {
-    background: transparent;
-    color: var(--text-muted);
-    border: none;
-    font-size: 0.8rem;
-    padding: 0.25rem 0.5rem;
-    text-decoration: underline;
-}
-
-.btn-nexus:hover {
-    transform: translateY(-2px);
-}
-
-.btn-nexus.primary:hover {
-    filter: brightness(1.15);
-}
-
-.btn-nexus.secondary:hover {
-    border-color: var(--accent);
-    background: var(--bg-surface);
-}
-
-.btn-nexus.link-btn:hover {
-    color: var(--text-main);
-}
-
-.btn-nexus.glow-btn {
-    position: relative;
-    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
-}
-
-.btn-nexus.glow-btn:hover {
-    box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
-}
-
-/* --- Modal styles --- */
-.modal-backdrop {
-    position: fixed;
-    inset: 0;
-    background: rgba(0, 0, 0, 0.7);
-    backdrop-filter: blur(5px);
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    z-index: 1000;
-    animation: fade-in-backdrop 0.3s ease;
-}
-
-/* --- Modal Content & Header --- */
-.modal-content {
-    width: 90%;
-    max-width: 620px; /* Wider split layout */
-    max-height: 90vh;
-    display: flex;
-    flex-direction: column;
-    padding: 2rem !important;
-    animation: modal-slide 0.3s cubic-bezier(0.4, 0, 0.2, 1);
-    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
-}
-
-@keyframes fade-in-backdrop {
-    from { opacity: 0; }
-    to { opacity: 1; }
-}
-
-@keyframes modal-slide {
-    from { opacity: 0; transform: translateY(-30px); }
-    to { opacity: 1; transform: translateY(0); }
-}
-
-.modal-header {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    margin-bottom: 1.5rem;
-}
-
-.modal-header h2, .modal-header h3 {
-    margin: 0;
-    font-size: 1.5rem;
-    font-weight: 700;
-    color: var(--text-main);
-}
-
-.close-btn {
-    background: transparent;
-    border: none;
-    color: var(--text-muted);
-    cursor: pointer;
-    transition: all 0.2s;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    padding: 0;
-}
-
-.close-btn:hover {
-    color: #10b981;
-    transform: rotate(90deg);
-}
-
-.modal-body {
-    flex: 1;
-    overflow-y: auto;
-    margin-bottom: 1.5rem;
-}
-
-.form-group {
-    display: flex;
-    flex-direction: column;
-    gap: 0.5rem;
-    margin-top: 1rem;
-}
-
-.form-group label {
-    font-size: 0.75rem;
-    font-weight: 600;
-    text-transform: uppercase;
-    letter-spacing: 1px;
-    color: var(--text-muted);
-}
-
-.form-control, .form-input, ::deep .form-control, ::deep .form-input {
-    padding: 0.75rem 1rem;
-    background: rgba(255, 255, 255, 0.03) !important;
-    border: 1px solid rgba(255, 255, 255, 0.1) !important;
-    border-radius: 8px;
-    color: #ffffff !important;
-    font-size: 0.95rem;
-    outline: none;
-    transition: all 0.3s;
-    width: 100%;
-    box-sizing: border-box;
-}
-
-.form-control:focus, .form-input:focus, ::deep .form-control:focus, ::deep .form-input:focus {
-    outline: none;
-    border-color: #10b981 !important;
-    background: rgba(255, 255, 255, 0.06) !important;
-    box-shadow: 0 0 15px rgba(16, 185, 129, 0.2) !important;
-}
-
-.error-banner {
-    margin-top: 1rem;
-    padding: 0.75rem 1rem;
-    background: rgba(255, 68, 68, 0.1);
-    border: 1px solid rgba(255, 68, 68, 0.3);
-    border-radius: 8px;
-    color: #ff4444;
-    font-size: 0.85rem;
-}
-
-.modal-footer {
-    display: flex;
-    justify-content: flex-end;
-    gap: 1rem;
-}
-
-/* --- Revisions list --- */
-.spinner-container {
-    display: flex;
-    align-items: center;
-    gap: 0.75rem;
-    padding: 2rem;
-    justify-content: center;
-    color: var(--text-muted);
-}
-
-.revisions-list {
-    display: flex;
-    flex-direction: column;
-    gap: 0.75rem;
-    max-height: 250px;
-    overflow-y: auto;
-    padding-right: 0.25rem;
-}
-
-.revision-item {
-    padding: 0.75rem 1rem;
-    background: var(--bg-base);
-    border: 1px solid var(--border);
-    border-radius: 8px;
-    display: flex;
-    flex-direction: column;
-    gap: 0.25rem;
-}
-
-.revision-header {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-}
-
-.revision-tag {
-    font-size: 0.75rem;
-    font-weight: 700;
-}
-
-.revision-tag.published {
-    color: var(--nexus-neon);
-}
-
-.revision-tag.draft {
-    color: #f59e0b;
-}
-
-.revision-date {
-    font-size: 0.75rem;
-    color: var(--text-muted);
-}
-
-.revision-meta {
-    font-size: 0.7rem;
-    color: var(--text-muted);
-}
-
-.empty-revisions {
-    text-align: center;
-    color: var(--text-muted);
-    padding: 2rem;
-}
-
-/* --- Loading skeleton animations --- */
-.skeleton-card {
-    background: var(--bg-surface);
-    border: 1px solid var(--border);
-    border-radius: 12px;
-    position: relative;
-    overflow: hidden;
-}
-
-.skeleton-card::after {
-    content: "";
-    position: absolute;
-    inset: 0;
-    transform: translateX(-100%);
-    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
-    animation: skeleton-glow 1.5s infinite;
-}
-
-@keyframes skeleton-glow {
-    100% { transform: translateX(100%); }
-}
-
-.skeleton-line {
-    background: rgba(255, 255, 255, 0.05);
-    border-radius: 4px;
-}
-
-.skeleton-line.label {
-    width: 60%;
-    height: 12px;
-    margin-bottom: 0.75rem;
-}
-
-.skeleton-line.value {
-    width: 40%;
-    height: 24px;
-}
-
-.skeleton-card-header {
-    height: 4px;
-    background: rgba(255, 255, 255, 0.05);
-}
-
-.skeleton-line.title {
-    width: 70%;
-    height: 16px;
-    margin: 1.5rem 1.5rem 0.5rem;
-}
-
-.skeleton-line.metadata {
-    width: 40%;
-    height: 12px;
-    margin: 0 1.5rem 1.5rem;
-}
-
-.skeleton-card-actions {
-    height: 38px;
-    background: rgba(255, 255, 255, 0.03);
-    margin-top: auto;
-}
-
-/* --- Mobile View Adjustments --- */
-@media (max-width: 767px) {
-    .dashboard-header {
-        padding: 1.5rem 1rem 1rem;
-    }
-
-    .dashboard-title {
-        font-size: 1.75rem;
-    }
-
-    .dashboard-content {
-        padding: 1.5rem 1rem;
-        gap: 2rem;
-    }
-
-    .book-card-actions {
-        flex-direction: column;
-    }
-
-    .book-card-actions .btn-nexus {
-        width: 100%;
-        justify-content: center;
-    }
-}
-
-.validation-message {
-    color: #ff4444;
-    font-size: 0.8rem;
-    margin-top: 0.25rem;
-}
-
-/* Split Layout for Creator Modal */
-.creator-layout {
-    display: grid;
-    grid-template-columns: 140px 1fr;
-    gap: 2rem;
-    align-items: start;
-    margin-top: 0.5rem;
-}
-
-.creator-cover {
-    width: 140px;
-    height: 200px;
-    border-radius: 12px;
-    overflow: hidden;
-    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
-    border: 1px solid rgba(255, 255, 255, 0.08);
-    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
-    position: relative;
-    user-select: none;
-    box-sizing: border-box;
-}
-
-.cover-mockup-design {
-    width: 100%;
-    height: 100%;
-    display: flex;
-    flex-direction: column;
-    justify-content: space-between;
-    padding: 1.5rem 1rem;
-    box-sizing: border-box;
-    position: relative;
-}
-
-.cover-accent-line {
-    position: absolute;
-    top: 0;
-    left: 10px;
-    width: 2px;
-    height: 100%;
-    background: rgba(16, 185, 129, 0.2); /* green accent line */
-    box-shadow: 0 0 8px rgba(16, 185, 129, 0.15);
-}
-
-.cover-main-content {
-    display: flex;
-    flex-direction: column;
-    gap: 0.75rem;
-    z-index: 2;
-    margin-top: 1rem;
-    text-align: center;
-}
-
-.cover-title-text {
-    font-size: 0.8rem;
-    font-weight: 700;
-    color: #ffffff;
-    line-height: 1.4;
-    display: -webkit-box;
-    -webkit-line-clamp: 4;
-    -webkit-box-orient: vertical;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    word-break: break-word;
-}
-
-.cover-author-text {
-    font-size: 0.6rem;
-    color: #9ca3af;
-    font-weight: 600;
-    text-transform: uppercase;
-    letter-spacing: 0.5px;
-}
-
-.cover-logo-container {
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    gap: 0.25rem;
-    z-index: 2;
-    color: #10b981;
-    opacity: 0.9;
-}
-
-.cover-logo-container svg {
-    width: 12px;
-    height: 12px;
-    fill: currentColor;
-}
-
-.cover-brand {
-    font-size: 0.65rem;
-    font-weight: 700;
-    letter-spacing: 1px;
-    text-transform: uppercase;
-}
-
-.creator-form-inputs {
-    display: flex;
-    flex-direction: column;
-    gap: 1.25rem;
-}
-
-.actions {
-    display: flex;
-    justify-content: center;
-    gap: 1rem;
-    margin-top: 1.5rem;
-}
-
-

src/NexusReader.UI.Shared/Pages/CreatorEdit.razor

@@ -1,186 +0,0 @@
-@page "/creator/edit/{BookId}"
-@page "/creator/edit/{BookId}/{ChapterId}"
-@layout MainHubLayout
-@attribute [Authorize]
-@using NexusReader.UI.Shared.Components
-
-@if (_loadingChapters)
-{
-    <div class="hub-loading" style="height: calc(100vh - 4rem); display: flex; flex-direction: column; justify-content: center; align-items: center; background-color: var(--bg-base);">
-        <div class="nexus-loader"></div>
-        <p style="margin-top: 1rem; color: var(--text-muted); font-family: var(--nexus-font-sans);">Ładowanie struktury książki...</p>
-    </div>
-}
-else
-{
-    <div class="creator-edit-fullscreen-wrapper">
-        
-        <div class="chapters-sidebar">
-            <div class="sidebar-meta-header">
-                <h2>Rozdziały</h2>
-            </div>
-            <div class="chapters-list-wrapper">
-                @foreach (var ch in _chapters)
-                {
-                    var isActive = ch.Id == _activeChapterId;
-                    <a class="chapter-item @(isActive ? "active" : "")" href="/creator/edit/@BookId/@ch.Id">
-                        @if (isActive)
-                        {
-                            <div class="active-indicator"></div>
-                            <i class="fa-solid fa-book-open chapter-icon"></i>
-                        }
-                        else
-                        {
-                            <i class="fa-solid fa-file-lines chapter-icon"></i>
-                        }
-                        <span class="chapter-title-text">@ch.Title</span>
-                    </a>
-                }
-            </div>
-        </div>
-
-        <div class="editor-workspace-area">
-            
-            <div class="editor-header-row">
-                <div class="title-zone">
-                    <h1 class="chapter-title">@_activeChapterTitle</h1>
-                </div>
-                <div class="telemetry-zone">
-                    <span class="chapter-id-badge">ID: @_activeChapterId</span>
-                </div>
-            </div>
-
-            <div class="editor-canvas-card">
-                @if (_loadingChapter)
-                {
-                    <div class="hub-loading" style="height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center;">
-                        <div class="nexus-loader"></div>
-                        <p style="margin-top: 1rem; color: var(--text-muted); font-family: var(--nexus-font-sans);">Wczytywanie treści rozdziału...</p>
-                    </div>
-                }
-                else if (_isChapterLoaded)
-                {
-                    <div class="milkdown-premium-container" spellcheck="false">
-                        <MarkdownEditor @key="_activeChapterId"
-                                        ChapterId="_activeChapterId"
-                                        InitialMarkdown="@_initialMarkdown"
-                                        ShowFetchButton="false" />
-                    </div>
-                }
-                else
-                {
-                    <div style="height: 100%; display: flex; flex-direction: column; justify-content: center; align-items: center; color: var(--text-muted); font-family: var(--nexus-font-sans);">
-                        <p>Wybierz lub utwórz rozdział, aby rozpocząć edycję.</p>
-                    </div>
-                }
-            </div>
-        </div>
-    </div>
-}
-
-@code {
-    [Inject] private HttpClient Http { get; set; } = default!;
-    [Inject] private NavigationManager NavigationManager { get; set; } = default!;
-
-    [Parameter] public string BookId { get; set; } = string.Empty;
-    [Parameter] public string ChapterId { get; set; } = string.Empty;
-
-    private List<ChapterListItem> _chapters = new();
-    private Guid _parsedBookId = Guid.Empty;
-    private Guid _activeChapterId = Guid.Empty;
-    private string _activeChapterTitle = string.Empty;
-    private string _initialMarkdown = string.Empty;
-    private bool _loadingChapters = true;
-    private bool _loadingChapter = false;
-    private bool _isChapterLoaded = false;
-
-    private class ChapterListItem
-    {
-        public Guid Id { get; set; }
-        public string Title { get; set; } = string.Empty;
-        public int SortOrder { get; set; }
-    }
-
-    private class ChapterDetail
-    {
-        public Guid Id { get; set; }
-        public string Title { get; set; } = string.Empty;
-        public string MarkdownContent { get; set; } = string.Empty;
-    }
-
-    protected override async Task OnParametersSetAsync()
-    {
-        await base.OnParametersSetAsync();
-
-        if (!Guid.TryParse(BookId, out var parsedBookId))
-        {
-            NavigationManager.NavigateTo("/creator");
-            return;
-        }
-
-        _parsedBookId = parsedBookId;
-
-        // Fetch chapters list if empty or if book ID has changed
-        if (_chapters.Count == 0)
-        {
-            _loadingChapters = true;
-            try
-            {
-                var chapters = await Http.GetFromJsonAsync<List<ChapterListItem>>($"/api/creator/books/{_parsedBookId}/chapters");
-                _chapters = chapters ?? new();
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"[CreatorEdit] Error fetching chapters list: {ex.Message}");
-            }
-            finally
-            {
-                _loadingChapters = false;
-            }
-        }
-
-        // If ChapterId is empty/null, select the first chapter from list and navigate
-        if (string.IsNullOrEmpty(ChapterId))
-        {
-            if (_chapters.Any())
-            {
-                NavigationManager.NavigateTo($"/creator/edit/{BookId}/{_chapters.First().Id}");
-            }
-            return;
-        }
-
-        if (Guid.TryParse(ChapterId, out var parsedChapterId))
-        {
-            // If active chapter changed, fetch its details
-            if (parsedChapterId != _activeChapterId)
-            {
-                _activeChapterId = parsedChapterId;
-                var ch = _chapters.FirstOrDefault(c => c.Id == _activeChapterId);
-                _activeChapterTitle = ch?.Title ?? "Rozdział";
-
-                _loadingChapter = true;
-                _isChapterLoaded = false;
-                StateHasChanged();
-
-                try
-                {
-                    var detail = await Http.GetFromJsonAsync<ChapterDetail>($"/api/chapters/{_activeChapterId}");
-                    if (detail != null)
-                    {
-                        _initialMarkdown = detail.MarkdownContent;
-                        _isChapterLoaded = true;
-                    }
-                }
-                catch (Exception ex)
-                {
-                    Console.WriteLine($"[CreatorEdit] Error fetching chapter content: {ex.Message}");
-                }
-                finally
-                {
-                    _loadingChapter = false;
-                }
-            }
-        }
-    }
-}
-

src/NexusReader.UI.Shared/Pages/CreatorEdit.razor.css

@@ -1,365 +0,0 @@
-/* ==========================================================================
-   NEXUSREADER CREATOR EDIT MODE - HIGH-FIDELITY SAAS PREMIUM DESIGN OVERRIDE
-   ========================================================================== */
-
-/* 1. ARCHITECTURAL BOUNDARY CONTROL */
-.creator-edit-fullscreen-wrapper {
-    width: 100% !important;
-    max-width: 100% !important;
-    height: calc(100vh - 4rem) !important;
-    margin: 0 !important;
-    padding: 0 !important;
-    display: flex !important;
-    overflow: hidden !important;
-    background-color: #121214;
-    box-sizing: border-box;
-}
-
-/* Dynamic theme bridge mapping for Warm Paper mode */
-.theme-light .creator-edit-fullscreen-wrapper {
-    background-color: #f4f1ea;
-}
-
-/* 2. UNIFIED SIDEBAR DESIGN (Eliminating layout color fragmentation) */
-.chapters-sidebar {
-    width: 300px !important;
-    flex-shrink: 0;
-    background-color: #16161a !important;
-    border-right: 1px solid rgba(255, 255, 255, 0.04) !important;
-    display: flex;
-    flex-direction: column;
-    padding: 2.5rem 1.5rem !important;
-    box-sizing: border-box;
-}
-
-.theme-light .chapters-sidebar {
-    background-color: #eae6db !important; /* Rich warm tone that remains fully cohesive with warm paper base */
-    border-right: 1px solid #dcd7cc !important;
-}
-
-.sidebar-meta-header h2 {
-    font-size: 0.8rem;
-    font-weight: 700;
-    text-transform: uppercase;
-    letter-spacing: 2px;
-    color: #a1a1aa;
-    margin: 0 0 1.75rem 0;
-}
-
-.theme-light .sidebar-meta-header h2 {
-    color: #78716c;
-}
-
-.chapters-list-wrapper {
-    display: flex;
-    flex-direction: column;
-    gap: 6px;
-}
-
-/* Premium Navigation Links */
-.chapter-item {
-    position: relative;
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    padding: 12px 16px !important;
-    border-radius: 10px;
-    color: #a1a1aa;
-    font-size: 0.95rem;
-    cursor: pointer;
-    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
-}
-
-.theme-light .chapter-item {
-    color: #78716c;
-}
-
-.chapter-item i.chapter-icon {
-    font-size: 0.95rem;
-    color: #71717a;
-    transition: color 0.25s ease;
-}
-
-/* Active Indicator Node Alignment */
-.chapter-item.active {
-    background-color: rgba(0, 255, 153, 0.05) !important;
-    color: #00ff99 !important;
-    font-weight: 600;
-}
-
-.theme-light .chapter-item.active {
-    background-color: rgba(16, 185, 129, 0.06) !important;
-    color: #10b981 !important;
-}
-
-.chapter-item.active i.chapter-icon {
-    color: inherit !important;
-}
-
-.chapter-item:hover:not(.active) {
-    background-color: rgba(255, 255, 255, 0.02);
-    color: #ffffff;
-}
-
-.theme-light .chapter-item:hover:not(.active) {
-    background-color: rgba(0, 0, 0, 0.02);
-    color: #2d2a26;
-}
-
-/* 3. WORKSPACE METRICS (Zen presentation spacing) */
-.editor-workspace-area {
-    flex-grow: 1;
-    display: flex;
-    flex-direction: column;
-    height: 100%;
-    padding: 3rem 4rem 2.5rem 4rem !important; /* Generous padding context for premium scale */
-    box-sizing: border-box;
-    overflow: hidden;
-}
-
-.editor-header-row {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    margin-bottom: 2rem;
-    flex-shrink: 0;
-    width: 100%;
-}
-
-.editor-workspace-area h1.chapter-title {
-    font-size: 2.4rem;
-    font-weight: 700;
-    color: #ffffff;
-    margin: 0;
-    letter-spacing: -0.75px;
-}
-
-.theme-light .editor-workspace-area h1.chapter-title {
-    color: #2d2a26;
-}
-
-.chapter-id-badge {
-    font-family: 'Azeret Mono', monospace;
-    font-size: 0.72rem;
-    color: #71717a;
-    background: #1a1a1e;
-    padding: 6px 14px;
-    border-radius: 8px;
-    border: 1px solid rgba(255, 255, 255, 0.05);
-    letter-spacing: 0.2px;
-}
-
-.theme-light .chapter-id-badge {
-    background: #ffffff;
-    color: #78716c;
-    border: 1px solid #dcd7cc;
-}
-
-/* 4. ELEVATED EDITOR CANVAS CARD (Introducing layered shadow mechanics) */
-.editor-canvas-card {
-    background-color: #1a1a1e !important;
-    border: 1px solid rgba(255, 255, 255, 0.04) !important;
-    border-radius: 20px;
-    padding: 3rem !important;
-    display: flex;
-    flex-direction: column;
-    flex-grow: 1;
-    overflow: hidden;
-    box-sizing: border-box;
-    /* Soft diffuse structural shadows mimicking actual surface elevation */
-    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 4px 12px rgba(0, 0, 0, 0.2);
-}
-
-.theme-light .editor-canvas-card {
-    background-color: #ffffff !important;
-    border: 1px solid #dcd7cc !important;
-    box-shadow: 0 20px 50px rgba(45, 42, 38, 0.04), 0 4px 12px rgba(45, 42, 38, 0.02);
-}
-
-.milkdown-premium-container {
-    flex-grow: 1;
-    display: flex;
-    flex-direction: column;
-    overflow: hidden;
-    width: 100%;
-}
-
-/* DEEP MOUNTING COMPONENT INTEROP */
-.milkdown-premium-container ::deep .milkdown {
-    background: transparent !important;
-    box-shadow: none !important;
-    border: none !important;
-    display: flex;
-    flex-direction: column;
-    flex-grow: 1;
-    overflow: hidden;
-    width: 100%;
-}
-
-.milkdown-premium-container ::deep .ProseMirror {
-    color: #e4e1d9 !important;
-    background-color: transparent !important;
-    font-size: 1.15rem !important;
-    line-height: 1.8 !important;
-    flex-grow: 1;
-    overflow-y: auto !important;
-    padding-right: 24px !important;
-    outline: none !important;
-    box-sizing: border-box;
-    width: 100%;
-}
-
-.theme-light .milkdown-premium-container ::deep .ProseMirror {
-    color: #2d2a26 !important;
-}
-
-/* Precise matching text selection token */
-.milkdown-premium-container ::deep .ProseMirror ::selection {
-    background-color: rgba(0, 255, 153, 0.2) !important;
-}
-
-.theme-light .milkdown-premium-container ::deep .ProseMirror ::selection {
-    background-color: rgba(16, 185, 129, 0.18) !important;
-}
-
-/* Core webkit custom scrollbar mapping */
-.milkdown-premium-container ::deep .ProseMirror::-webkit-scrollbar {
-    width: 6px;
-}
-.milkdown-premium-container ::deep .ProseMirror::-webkit-scrollbar-track {
-    background: transparent;
-}
-.milkdown-premium-container ::deep .ProseMirror::-webkit-scrollbar-thumb {
-    background: rgba(255, 255, 255, 0.08);
-    border-radius: 4px;
-}
-
-.theme-light .milkdown-premium-container ::deep .ProseMirror::-webkit-scrollbar-thumb {
-    background: #dcd7cc;
-}
-
-/* 5. SEAMLESS INTEGRATED ACTIONS FOOTER BAR (OVERWRITING FOR MARKDOWNEDITOR COMPONENT INTEGRATION) */
-.milkdown-premium-container ::deep .markdown-editor-container {
-    display: flex;
-    flex-direction: column;
-    flex-grow: 1;
-    overflow: hidden;
-    height: 100%;
-}
-
-.milkdown-premium-container ::deep .milkdown-editor-wrapper {
-    background: transparent !important;
-    border: none !important;
-    box-shadow: none !important;
-    padding: 0 !important;
-    flex-grow: 1;
-    overflow: hidden !important;
-    display: flex;
-    flex-direction: column;
-}
-
-.milkdown-premium-container ::deep .milkdown {
-    flex-grow: 1;
-    overflow: hidden !important;
-}
-
-.milkdown-premium-container ::deep .editor-footer {
-    display: flex;
-    justify-content: space-between;
-    align-items: center;
-    margin-top: 2rem !important;
-    padding: 1.5rem 0 0 0 !important;
-    border: none !important;
-    border-top: 1px solid rgba(255, 255, 255, 0.04) !important;
-    background: transparent !important;
-    border-radius: 0 !important;
-    flex-shrink: 0;
-    width: 100%;
-}
-
-.theme-light .milkdown-premium-container ::deep .editor-footer {
-    border-top: 1px solid #dcd7cc !important;
-}
-
-/* Telemetry cloud synchronization line mapping */
-.milkdown-premium-container ::deep .status-indicator {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    font-family: 'Azeret Mono', monospace;
-    font-size: 0.82rem;
-    color: #71717a;
-    letter-spacing: 0.1px;
-}
-
-.theme-light .milkdown-premium-container ::deep .status-indicator {
-    color: #78716c;
-}
-
-.milkdown-premium-container ::deep .status-dot {
-    width: 7px;
-    height: 7px;
-    border-radius: 50%;
-    display: inline-block;
-}
-
-.milkdown-premium-container ::deep .status-dot.saved {
-    background-color: #00ff99 !important;
-    box-shadow: 0 0 10px rgba(0, 255, 153, 0.8) !important;
-    color: #00ff99 !important;
-}
-
-.theme-light .milkdown-premium-container ::deep .status-dot.saved {
-    background-color: #10b981 !important;
-    box-shadow: 0 0 10px rgba(16, 185, 129, 0.6) !important;
-    color: #10b981 !important;
-}
-
-.milkdown-premium-container ::deep .status-dot.saving {
-    background-color: #F59E0B !important;
-    box-shadow: 0 0 10px rgba(245, 158, 11, 0.8) !important;
-    color: #F59E0B !important;
-}
-
-.milkdown-premium-container ::deep .status-dot.offline {
-    background-color: #EF4444 !important;
-    box-shadow: 0 0 10px rgba(239, 68, 68, 0.8) !important;
-    color: #EF4444 !important;
-}
-
-/* Premium Tactile Operational Button Trigger */
-.milkdown-premium-container ::deep .nexus-btn {
-    background-color: #00ff99 !important;
-    color: #121214 !important;
-    font-weight: 700;
-    font-size: 0.9rem;
-    letter-spacing: -0.1px;
-    padding: 11px 24px !important;
-    border: none !important;
-    border-radius: 10px;
-    cursor: pointer;
-    display: inline-flex;
-    align-items: center;
-    gap: 10px;
-    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
-    box-shadow: 0 4px 20px rgba(0, 255, 153, 0.15);
-    height: auto !important;
-    min-height: unset !important;
-}
-
-.theme-light .milkdown-premium-container ::deep .nexus-btn {
-    background-color: #10b981 !important;
-    color: #ffffff !important;
-    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.15);
-}
-
-.milkdown-premium-container ::deep .nexus-btn:hover {
-    transform: translateY(-1px);
-    box-shadow: 0 8px 24px rgba(0, 255, 153, 0.3);
-}
-
-.theme-light .milkdown-premium-container ::deep .nexus-btn:hover {
-    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
-}
-
-

src/NexusReader.UI.Shared/Pages/Dashboard.razor

@@ -7,8 +7,6 @@
 @inject IIdentityService IdentityService
 @inject NavigationManager NavigationManager
 @inject ISyncService SyncService
-@inject IJSRuntime JS
-@using Microsoft.JSInterop
 @attribute [Authorize]
 @implements IDisposable
 
@@ -56,65 +54,31 @@
                 <section class="integration-card glass-panel">
                     <div class="panel-header">
                         <h4>Integracja Wiedzy</h4>
-                        <button class="view-toggle-btn" @onclick="ToggleGraphMode" type="button" aria-label="Toggle View">
+                        <NexusIcon Name="arrow-right" Size="16" />
-                            <NexusIcon Name="@(_showSimplifiedList ? "map" : "list")" Size="14" />
-                            <span>@(_showSimplifiedList ? "Pokaż Wykres" : "Pokaż Listę")</span>
-                        </button>
                     </div>
-
-                    @if (_showSimplifiedList)
-                    {
-                        <div class="concepts-linear-stack">
-                            @if (_profile?.MappedConcepts != null && _profile.MappedConcepts.Any())
-                            {
-                                <div class="concept-linear-list">
-                                    @foreach (var concept in _profile.MappedConcepts)
-                                    {
-                                        <div class="concept-linear-item">
-                                            <span class="concept-badge @concept.Type.ToLower()">@concept.Type</span>
-                                            <span class="concept-text" title="@concept.Content">@concept.Content</span>
-                                        </div>
-                                    }
-                                </div>
-                            }
-                            else
-                            {
-                                <div class="concepts-empty-list">
-                                    <NexusIcon Name="info" Size="20" />
-                                    <p>Brak pojęć. Rozpocznij czytanie, aby AI wyodrębniło kluczowe koncepty.</p>
-                                </div>
-                            }
-                        </div>
-                    }
-                    else
-                    {
                     <div class="graph-placeholder">
                         <div class="graph-node central" title="Ośrodek Wiedzy Nexus Reader"></div>
                         
                         @if (_profile?.MappedConcepts != null && _profile.MappedConcepts.Any())
                         {
-                                <div @key='"satellite-concepts-container"' style="display: contents;">
                             @for (int i = 0; i < _profile.MappedConcepts.Count; i++)
                             {
                                 var concept = _profile.MappedConcepts[i];
                                 var angle = i * (360.0 / _profile.MappedConcepts.Count);
                                 var dist = 65;
-                                        <div @key="concept.Id" class="graph-node satellite" 
+                                <div class="graph-node satellite" 
                                      style="--angle: @(angle)deg; --dist: @(dist)px;"
                                      title="[@concept.Type] @concept.Content"
                                      @onmouseover="() => SetHoveredConcept(concept)"
                                      @onmouseout="ClearHoveredConcept">
                                 </div>
                             }
-                                </div>
                         }
                         else
                         {
-                                <div @key='"satellite-placeholders-container"' style="display: contents;">
+                            <div class="graph-node satellite" style="--angle: 0deg; --dist: 60px;"></div>
-                                    <div @key='"satellite-placeholder-0"' class="graph-node satellite" style="--angle: 0deg; --dist: 60px;"></div>
+                            <div class="graph-node satellite" style="--angle: 120deg; --dist: 50px;"></div>
-                                    <div @key='"satellite-placeholder-1"' class="graph-node satellite" style="--angle: 120deg; --dist: 50px;"></div>
+                            <div class="graph-node satellite" style="--angle: 240deg; --dist: 70px;"></div>
-                                    <div @key='"satellite-placeholder-2"' class="graph-node satellite" style="--angle: 240deg; --dist: 70px;"></div>
-                                </div>
                         }
                         
                         <div class="active-node-label">
@@ -136,7 +100,6 @@
                             <p class="concept-content">Najedź na węzeł, aby zbadać pojęcie wydobyte przez Nexus AI.</p>
                         </div>
                     }
-                    }
                 </section>
 
                 <!-- Quiz Summary -->
@@ -148,10 +111,10 @@
                     <div class="quiz-preview">
                         @if (_profile?.RecentQuizzes != null && _profile.RecentQuizzes.Any())
                         {
-                            <div @key='"quiz-history-list"' class="quiz-history-list">
+                            <div class="quiz-history-list">
                                 @foreach (var quiz in _profile.RecentQuizzes)
                                 {
-                                    <div @key="quiz.Id" class="quiz-history-item">
+                                    <div class="quiz-history-item">
                                         <div class="quiz-item-header">
                                             <span class="quiz-topic">@quiz.Topic</span>
                                             <span class="quiz-score badge @(quiz.Percentage >= 80 ? "badge-success" : quiz.Percentage >= 50 ? "badge-warning" : "badge-danger")">
@@ -167,7 +130,7 @@
                         }
                         else
                         {
-                            <div @key='"empty-quiz-state"' class="empty-quiz-state">
+                            <div class="empty-quiz-state">
                                 <p class="question">Brak rozwiązanych quizów</p>
                                 <p class="sub-text">Rozwiązuj quizy w trakcie czytania książek, aby śledzić swoje postępy.</p>
                             </div>
@@ -177,9 +140,6 @@
             </div>
         </div>
 
-        <!-- Contextual AI Recommendations -->
-        <ContextualRecommendationsWidget />
-
         <!-- Detailed Content Block Showcase -->
         <section class="architecture-guide-panel glass-panel">
             <div class="panel-header">
@@ -206,32 +166,6 @@
     private UserProfileDto? _profile;
     private MappedConceptDto? _hoveredConcept;
     private string _hoveredConceptLabel = string.Empty;
-    private bool _showSimplifiedList = false;
-
-    protected override async Task OnAfterRenderAsync(bool firstRender)
-    {
-        if (firstRender)
-        {
-            try
-            {
-                var isMobile = await JS.InvokeAsync<bool>("eval", "window.innerWidth < 768");
-                if (isMobile)
-                {
-                    _showSimplifiedList = true;
-                    StateHasChanged();
-                }
-            }
-            catch
-            {
-                // Fallback for tests or prerendering
-            }
-        }
-    }
-
-    private void ToggleGraphMode()
-    {
-        _showSimplifiedList = !_showSimplifiedList;
-    }
 
     protected override async Task OnInitializedAsync()
     {

src/NexusReader.UI.Shared/Pages/Dashboard.razor.css

@@ -17,16 +17,16 @@
     display: flex;
     justify-content: center;
     overflow: hidden;
-    background: var(--bg-surface);
+    background: #0d0d0d;
-    border-bottom: 1px solid var(--border);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
 }
 
 .header-grid-bg {
     position: absolute;
     inset: 0;
     background-image: 
-        linear-gradient(var(--border) 1px, transparent 1px),
+        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
-        linear-gradient(90deg, var(--border) 1px, transparent 1px);
+        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
     background-size: 60px 60px;
     background-position: center;
     mask-image: radial-gradient(circle at center, black, transparent 80%);
@@ -52,10 +52,10 @@
     height: 100%;
     border-radius: 50%;
     object-fit: cover;
-    border: 3px solid var(--border);
+    border: 3px solid #1a1a1a;
     position: relative;
     z-index: 2;
-    background: var(--bg-surface);
+    background: #222;
 }
 
 .avatar-glow {
@@ -78,7 +78,7 @@
     font-family: var(--nexus-font-sans);
     font-size: 1.25rem;
     font-weight: 500;
-    color: var(--text-main);
+    color: #ffffff;
     letter-spacing: 1px;
     text-transform: lowercase;
 }
@@ -103,17 +103,17 @@
 
 .status-pill {
     padding: 0.6rem 1.25rem;
-    background: var(--bg-base);
+    background: rgba(16, 185, 129, 0.05);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(16, 185, 129, 0.3);
     border-radius: 100px;
     display: flex;
     gap: 0.5rem;
     font-size: 0.9rem;
-    box-shadow: 0 0 15px rgba(16, 185, 129, 0.05);
+    box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
 }
 
-.pill-label { color: var(--text-muted); }
+.pill-label { color: #A0A0A0; }
-.pill-value { color: var(--text-main); font-weight: 600; }
+.pill-value { color: #ffffff; font-weight: 600; }
 
 /* --- Dashboard Content --- */
 .dashboard-content {
@@ -127,7 +127,7 @@
     font-family: var(--nexus-font-serif);
     font-size: 2rem;
     margin-bottom: 2rem;
-    color: var(--text-main);
+    color: #ffffff;
 }
 
 .main-grid {
@@ -137,18 +137,18 @@
 }
 
 .glass-panel {
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 12px;
     padding: 1.5rem;
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
 }
 
 .glass-panel:hover {
-    background: var(--bg-surface);
+    background: #1e1e24;
-    border-color: var(--accent);
+    border-color: rgba(16, 185, 129, 0.2);
     transform: translateY(-4px);
-    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
+    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
 }
 
 /* Reading Card */
@@ -161,7 +161,7 @@
 .reading-card h3 {
     font-size: 1.1rem;
     font-weight: 600;
-    color: var(--text-main);
+    color: #E0E0E0;
     margin: 0;
 }
 
@@ -178,7 +178,7 @@
 .reading-thumb img {
     width: 100%;
     border-radius: 12px;
-    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
+    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
 }
 
 .reading-info {
@@ -196,12 +196,12 @@
 
 .chapter-label {
     font-size: 0.85rem;
-    color: var(--text-muted);
+    color: #A0A0A0;
 }
 
 .progress-container {
     height: 8px;
-    background: var(--border);
+    background: rgba(255, 255, 255, 0.05);
     border-radius: 4px;
     position: relative;
 }
@@ -228,13 +228,13 @@
 
 .progress-detail {
     font-size: 0.8rem;
-    color: var(--text-muted);
+    color: #666;
 }
 
 .reading-desc {
     font-size: 0.85rem;
     line-height: 1.6;
-    color: var(--text-muted);
+    color: #888;
     margin: 0;
 }
 
@@ -261,7 +261,7 @@
     margin: 0;
     font-size: 1rem;
     font-weight: 600;
-    color: var(--text-main);
+    color: #E0E0E0;
 }
 
 /* Graph Placeholder */
@@ -325,7 +325,7 @@
 
 .question {
     font-size: 0.95rem;
-    color: var(--text-main);
+    color: #E0E0E0;
 }
 
 .quiz-options {
@@ -336,14 +336,13 @@
 
 .quiz-option {
     padding: 0.75rem 1rem;
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.02);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 10px;
     font-size: 0.9rem;
     display: flex;
     gap: 0.75rem;
     cursor: pointer;
-    color: var(--text-main);
 }
 
 .quiz-option.active {
@@ -373,9 +372,9 @@
 }
 
 .btn-nexus.secondary {
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.05);
-    color: var(--text-main);
+    color: #fff;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.1);
 }
 
 .btn-nexus:hover {
@@ -418,16 +417,16 @@
 }
 
 .quiz-history-item {
-    background: var(--bg-surface);
+    background: rgba(255, 255, 255, 0.02);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 12px;
     padding: 1rem;
     transition: all 0.2s ease;
 }
 
 .quiz-history-item:hover {
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.04);
-    border-color: var(--border);
+    border-color: rgba(255, 255, 255, 0.1);
 }
 
 .quiz-item-header {
@@ -441,13 +440,13 @@
 .quiz-topic {
     font-size: 0.95rem;
     font-weight: 500;
-    color: var(--text-main);
+    color: #ffffff;
 }
 
 .quiz-item-meta {
     display: flex;
     font-size: 0.75rem;
-    color: var(--text-muted);
+    color: #666666;
 }
 
 .badge {
@@ -482,7 +481,7 @@
 
 .empty-quiz-state .sub-text {
     font-size: 0.8rem;
-    color: var(--text-muted);
+    color: #666666;
     margin-top: 0.5rem;
 }
 
@@ -490,8 +489,8 @@
 .concept-detail-toast {
     margin-top: 1rem;
     padding: 0.75rem 1rem;
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.02);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 12px;
     min-height: 80px;
     display: flex;
@@ -515,7 +514,7 @@
 .concept-content {
     font-size: 0.85rem;
     line-height: 1.4;
-    color: var(--text-main);
+    color: #E0E0E0;
     margin: 0;
     display: -webkit-box;
     -webkit-line-clamp: 2;
@@ -524,29 +523,28 @@
 }
 
 /* Mobile Dashboard Overrides */
-@media (max-width: 767px) {
+@media (max-width: 768px) {
     .dashboard-content {
-        padding: 0.5rem 0.5rem calc(1.5rem + 64px) !important;
+        padding: 1.25rem 0.75rem;
     }
 
     .profile-header {
-        padding: 10px 12px;
+        padding: 1.5rem 1rem;
-        background: var(--bg-surface);
+        border-radius: 16px;
-        border: 1px solid var(--border);
-        border-radius: 12px;
-        margin-bottom: 10px;
     }
 
     .profile-visual {
-        display: grid;
+        flex-direction: row;
-        grid-template-columns: auto 1fr;
+        flex-wrap: wrap;
+        justify-content: flex-start;
         align-items: center;
-        gap: 0.5rem;
+        text-align: left;
+        gap: 1.25rem;
     }
 
     .avatar-wrapper {
-        width: 40px;
+        width: 70px;
-        height: 40px;
+        height: 70px;
         margin: 0;
     }
 
@@ -554,91 +552,45 @@
         flex: 1;
     }
 
-    .username {
+    .user-name {
-        font-size: 1.05rem;
+        font-size: 1.5rem;
-        font-weight: 600;
+        margin-bottom: 0.25rem;
-        text-align: left;
-        margin: 0;
-        letter-spacing: 0px;
     }
 
     .user-role {
-        font-size: 0.8rem;
+        font-size: 0.85rem;
     }
 
     .status-pills {
-        grid-column: span 2;
-        display: flex;
-        flex-direction: row;
-        justify-content: space-between;
         width: 100%;
-        gap: 0.25rem;
+        margin-top: 0.5rem;
-        margin-top: 0.15rem;
+        justify-content: flex-start;
+        flex-wrap: wrap;
+        gap: 0.5rem;
     }
 
     .status-pill {
-        flex: 1;
+        padding: 0.35rem 0.75rem;
-        display: flex;
+        font-size: 0.75rem;
-        justify-content: center;
-        align-items: center;
-        padding: 0.25rem 0.4rem;
-        font-size: 0.65rem;
-        gap: 0.2rem;
-        white-space: nowrap;
-        border-radius: 6px;
-    }
-
-    .section-title {
-        font-size: 1.25rem;
-        font-weight: 700;
-        letter-spacing: -0.5px;
-        margin-top: 4px;
-        margin-bottom: 8px;
-        color: var(--text-main);
     }
 
     .main-grid {
         grid-template-columns: 1fr !important;
-        gap: 0.75rem !important;
+        gap: 1.25rem !important;
     }
 
     .secondary-grid {
-        display: grid !important;
         grid-template-columns: 1fr !important;
-        gap: 0.75rem !important;
+        gap: 1.25rem !important;
     }
 
     /* Force all widgets to take 100% width and fit inside parent container nicely */
     .glass-panel {
         width: 100% !important;
-        padding: 12px !important;
+        padding: 1.25rem !important;
         box-sizing: border-box;
     }
 
-    /* Compress Knowledge Graph and Concept stack heights to maximize visible fold space */
-    .graph-placeholder {
-        height: 120px;
-    }
-
-    .concepts-linear-stack {
-        height: 120px !important;
-        max-height: 120px !important;
-        overflow-y: auto !important;
-        padding-right: 4px;
-    }
-
-    .concept-linear-item {
-        padding: 6px 8px !important;
-        font-size: 0.75rem !important;
-        gap: 0.5rem !important;
-        min-height: auto !important; /* Prevent touch target min-height expansion */
-    }
-
-    .concept-badge {
-        padding: 2px 6px !important;
-        font-size: 0.65rem !important;
-    }
-
     /* Expand touch-targets to 48px min height for interactive elements */
     .btn-nexus, .quiz-option, .satellite, .logout-btn, .nav-item, .quiz-item {
         min-height: 48px;
@@ -651,8 +603,8 @@
 /* --- Architecture Guide Block --- */
 .architecture-guide-panel {
     margin-top: 2.5rem;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 12px;
     padding: 2rem;
 }
@@ -666,7 +618,7 @@
 .architecture-content h3 {
     font-size: 1.5rem;
     font-weight: 700;
-    color: var(--text-main);
+    color: #ffffff;
     margin-bottom: 1.25rem;
     letter-spacing: -0.01em;
 }
@@ -674,286 +626,16 @@
 .architecture-content p {
     font-size: 0.95rem;
     line-height: 1.6;
-    color: var(--text-main);
+    color: #e4e4e7;
     margin-bottom: 1.25rem;
 }
 
 .architecture-content code {
-    background: var(--bg-base);
+    background: rgba(255, 255, 255, 0.05);
     color: #10b981;
     padding: 0.2rem 0.4rem;
     border-radius: 4px;
     font-size: 0.85rem;
 }
 
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   ============================================================ */
-
-.theme-light .username::before,
-.theme-light .username::after {
-    color: var(--accent);
-}
-
-.theme-light .avatar-glow {
-    background: var(--accent);
-    filter: blur(15px);
-    opacity: 0.2;
-}
-
-.theme-light .progress-container {
-    background: #e4e1d9;
-}
-
-.theme-light .progress-bar {
-    background: var(--accent);
-    box-shadow: 0 0 8px rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .progress-bubble {
-    background: var(--accent);
-    color: #ffffff;
-}
-
-.theme-light .graph-node {
-    background: rgba(0, 0, 0, 0.06);
-    border: 1px solid rgba(0, 0, 0, 0.08);
-}
-
-.theme-light .graph-node.central {
-    background: var(--accent);
-    box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .graph-node.satellite {
-    background: rgba(16, 185, 129, 0.15);
-    border: 1px solid var(--accent);
-}
-
-.theme-light .graph-node.satellite:hover {
-    background: var(--accent);
-    box-shadow: 0 0 10px var(--accent);
-}
-
-.theme-light .active-node-label {
-    background: rgba(16, 185, 129, 0.06);
-    border: 1px solid var(--accent);
-    color: var(--accent);
-}
-
-.theme-light .quiz-option.active {
-    background: rgba(16, 185, 129, 0.06);
-    border-color: var(--accent);
-    color: var(--accent);
-}
-
-.theme-light .btn-nexus.primary {
-    background: var(--accent);
-    color: #0d0d0d;
-}
-
-.theme-light .btn-nexus.primary:hover {
-    background: #059669;
-    color: #ffffff;
-}
-
-.theme-light .empty-icon {
-    color: var(--accent);
-    filter: none;
-}
-
-.theme-light .badge-success {
-    background: rgba(16, 185, 129, 0.1);
-    color: var(--accent);
-    border: 1px solid rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .concept-type {
-    color: var(--accent);
-}
-
-/* --- Concepts Linear Stack for Mobile/Utility Switch --- */
-.concepts-linear-stack {
-    height: 180px;
-    display: flex;
-    flex-direction: column;
-    overflow-y: auto;
-    gap: 0.5rem;
-    padding-right: 0.5rem;
-}
-
-.concept-linear-list {
-    display: flex;
-    flex-direction: column;
-    gap: 0.5rem;
-}
-
-.concept-linear-item {
-    display: flex;
-    align-items: center;
-    gap: 0.75rem;
-    padding: 0.6rem 0.75rem;
-    background: rgba(255, 255, 255, 0.02);
-    border: 1px solid var(--border);
-    border-radius: 8px;
-    font-size: 0.85rem;
-    color: var(--text-main);
-    transition: all 0.2s ease;
-}
-
-.concept-linear-item:hover {
-    background: rgba(255, 255, 255, 0.04);
-    border-color: rgba(0, 255, 153, 0.2);
-    transform: translateX(2px);
-}
-
-.concept-badge {
-    padding: 2px 8px;
-    border-radius: 4px;
-    font-size: 0.7rem;
-    font-weight: 700;
-    text-transform: uppercase;
-    letter-spacing: 0.5px;
-    white-space: nowrap;
-}
-
-.concept-badge.rule {
-    background: rgba(255, 70, 70, 0.1);
-    color: #ff8b8b;
-    border: 1px solid rgba(255, 70, 70, 0.2);
-}
-
-.concept-badge.definition {
-    background: rgba(255, 176, 58, 0.1);
-    color: #ffd18c;
-    border: 1px solid rgba(255, 176, 58, 0.2);
-}
-
-.concept-badge.table {
-    background: rgba(217, 70, 239, 0.1);
-    color: #f5d0fe;
-    border: 1px solid rgba(217, 70, 239, 0.2);
-}
-
-.concept-badge.section {
-    background: rgba(59, 130, 246, 0.1);
-    color: #93c5fd;
-    border: 1px solid rgba(59, 130, 246, 0.2);
-}
-
-.concept-badge.bridge {
-    background: rgba(6, 182, 212, 0.1);
-    color: #67e8f9;
-    border: 1px solid rgba(6, 182, 212, 0.2);
-}
-
-.concept-badge.concept {
-    background: rgba(0, 210, 196, 0.05);
-    color: #e0e0e0;
-    border: 1px solid rgba(0, 210, 196, 0.2);
-}
-
-.concept-text {
-    flex: 1;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
-    font-weight: 500;
-}
-
-.concepts-empty-list {
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    justify-content: center;
-    height: 100%;
-    color: var(--text-muted);
-    font-size: 0.85rem;
-    text-align: center;
-    gap: 0.5rem;
-}
-
-.concepts-empty-list p {
-    margin: 0;
-}
-
-.view-toggle-btn {
-    display: inline-flex;
-    align-items: center;
-    gap: 0.35rem;
-    background: rgba(255, 255, 255, 0.03);
-    border: 1px solid var(--border);
-    color: var(--text-muted);
-    padding: 0.35rem 0.75rem;
-    border-radius: 6px;
-    font-size: 0.75rem;
-    font-weight: 600;
-    cursor: pointer;
-    transition: all 0.2s ease;
-}
-
-.view-toggle-btn:hover {
-    background: rgba(0, 255, 153, 0.08);
-    border-color: var(--accent);
-    color: var(--accent);
-}
-
-/* --- Light Theme Overrides for Concepts Stack --- */
-.theme-light .concept-linear-item {
-    background: rgba(0, 0, 0, 0.02);
-    color: var(--text-main);
-}
-
-.theme-light .concept-linear-item:hover {
-    background: rgba(0, 0, 0, 0.04);
-    border-color: rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .concept-badge.rule {
-    background: rgba(220, 38, 38, 0.05);
-    color: #991b1b;
-    border-color: rgba(220, 38, 38, 0.15);
-}
-
-.theme-light .concept-badge.definition {
-    background: rgba(217, 119, 6, 0.05);
-    color: #92400e;
-    border-color: rgba(217, 119, 6, 0.15);
-}
-
-.theme-light .concept-badge.table {
-    background: rgba(192, 132, 252, 0.05);
-    color: #6b21a8;
-    border-color: rgba(192, 132, 252, 0.15);
-}
-
-.theme-light .concept-badge.section {
-    background: rgba(37, 99, 235, 0.05);
-    color: #1e3a8a;
-    border-color: rgba(37, 99, 235, 0.15);
-}
-
-.theme-light .concept-badge.bridge {
-    background: rgba(8, 145, 178, 0.05);
-    color: #155e75;
-    border-color: rgba(8, 145, 178, 0.15);
-}
-
-.theme-light .concept-badge.concept {
-    background: rgba(13, 148, 136, 0.03);
-    color: #115e59;
-    border-color: rgba(13, 148, 136, 0.1);
-}
-
-.theme-light .view-toggle-btn {
-    background: rgba(0, 0, 0, 0.02);
-}
-
-.theme-light .view-toggle-btn:hover {
-    background: rgba(16, 185, 129, 0.08);
-    border-color: var(--accent);
-    color: var(--accent);
-}
-
-
 

src/NexusReader.UI.Shared/Pages/Intelligence.razor

@@ -7,13 +7,11 @@
 @using NexusReader.UI.Shared.Components.Molecules
 @using NexusReader.UI.Shared.Components.Atoms
 @using NexusReader.UI.Shared.Models
-@using Microsoft.Extensions.Logging
 @using System.Net.Http.Json
 @inject HttpClient Http
 @inject IKnowledgeService KnowledgeService
 @inject AuthenticationStateProvider AuthStateProvider
 @inject ILibraryStateService LibraryStateService
-@inject ILogger<Intelligence> Logger
 
 <div class="intelligence-page">
     <div class="intelligence-layout">
@@ -132,7 +130,7 @@
         }
         catch (Exception ex)
         {
-            Logger.LogError(ex, "[Intelligence] Failed to load books.");
+            Console.WriteLine($"[Intelligence] Failed to load books: {ex.Message}");
         }
     }
 

src/NexusReader.UI.Shared/Pages/Intelligence.razor.css

@@ -1,7 +1,7 @@
 .intelligence-page {
     margin: -2.5rem;
     height: 100vh;
-    background: var(--bg-base);
+    background: #121214;
     display: flex;
     flex-direction: column;
     overflow: hidden;
@@ -45,11 +45,11 @@
     background: transparent;
 }
 .chat-thread-container::-webkit-scrollbar-thumb {
-    background: var(--accent-glow);
+    background: rgba(16, 185, 129, 0.2);
     border-radius: 4px;
 }
 .chat-thread-container::-webkit-scrollbar-thumb:hover {
-    background: var(--accent);
+    background: rgba(16, 185, 129, 0.4);
 }
 
 .chat-bubbles-scroll {
@@ -78,7 +78,7 @@
 
 .welcome-prompt {
     font-family: var(--nexus-font-sans, inherit);
-    color: var(--text-main);
+    color: #e4e4e7;
     font-size: 1.35rem;
     font-weight: 500;
     letter-spacing: -0.2px;
@@ -87,7 +87,7 @@
 /* Input Controls */
 .chat-input-controls {
     padding: 1.5rem 4rem 3rem 4rem;
-    background: linear-gradient(to top, var(--bg-base) 70%, transparent);
+    background: linear-gradient(to top, #121214 70%, rgba(18, 18, 20, 0));
     flex-shrink: 0;
 }
 
@@ -117,13 +117,13 @@
     gap: 0.6rem;
     font-size: 0.85rem;
     font-weight: 500;
-    color: var(--text-muted);
+    color: #8b8273;
 }
 
 .nexus-select {
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.06);
-    color: var(--text-main);
+    color: #e4e4e7;
     padding: 0.4rem 2rem 0.4rem 0.75rem;
     border-radius: 8px;
     outline: none;
@@ -138,38 +138,38 @@
 }
 
 .nexus-select:focus {
-    border-color: var(--accent);
+    border-color: #10b981;
-    box-shadow: 0 0 8px var(--accent-glow);
+    box-shadow: 0 0 8px rgba(16, 185, 129, 0.15);
 }
 
 .input-field-group {
     display: flex;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.06);
     border-radius: 12px;
     padding: 0.4rem;
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
-    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
+    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
 }
 
 .input-field-group:focus-within {
-    border-color: var(--accent);
+    border-color: rgba(16, 185, 129, 0.5);
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    box-shadow: 0 10px 35px var(--accent-glow);
+    box-shadow: 0 10px 35px rgba(16, 185, 129, 0.1);
 }
 
 .nexus-input {
     flex-grow: 1;
     background: transparent;
     border: none;
-    color: var(--text-main);
+    color: #ffffff;
     font-size: 0.975rem;
     outline: none;
     padding: 0.5rem 1rem;
 }
 
 .nexus-input::placeholder {
-    color: var(--text-muted);
+    color: #8b8273;
 }
 
 .search-btn {
@@ -180,31 +180,29 @@
     align-items: center;
     justify-content: center;
     border-radius: 8px;
-    background: var(--accent);
+    background: #10b981;
     border: none;
-    color: var(--bg-surface);
+    color: #121214;
     cursor: pointer;
     transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
 }
 
 .search-btn:hover:not(:disabled) {
-    background: var(--accent);
+    background: #0d9668;
-    opacity: 0.9;
     transform: scale(1.02);
 }
 
 .search-btn:disabled {
-    background: var(--bg-base);
+    background: rgba(26, 26, 30, 0.8);
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.2);
-    opacity: 0.4;
+    border: 1px solid rgba(255, 255, 255, 0.02);
-    border: 1px solid var(--border);
     cursor: not-allowed;
 }
 
 /* Typing / Loading Indicators */
 .message-bubble.pending-bubble {
-    border-color: var(--accent-glow);
+    border-color: rgba(16, 185, 129, 0.25);
-    background: var(--accent-glow);
+    background: rgba(16, 185, 129, 0.03);
     max-width: 450px;
 }
 
@@ -218,7 +216,7 @@
 .typing-indicator span {
     width: 7px;
     height: 7px;
-    background: var(--accent);
+    background: #10b981;
     border-radius: 50%;
     display: inline-block;
     animation: typing-bounce 1.4s infinite ease-in-out both;
@@ -229,16 +227,16 @@
 
 .loading-label {
     font-size: 0.825rem;
-    color: var(--text-muted);
+    color: rgba(255, 255, 255, 0.45);
     font-style: italic;
 }
 
 .btn-spinner {
     width: 18px;
     height: 18px;
-    border: 2px solid var(--border);
+    border: 2px solid rgba(18, 18, 20, 0.1);
     border-radius: 50%;
-    border-top-color: var(--accent);
+    border-top-color: #121214;
     animation: spin 0.8s linear infinite;
 }
 
@@ -262,66 +260,3 @@
     0% { transform: rotate(0deg); }
     100% { transform: rotate(360deg); }
 }
-
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   ============================================================ */
-
-.theme-light .welcome-prompt {
-    color: var(--text-main);
-}
-
-.theme-light .welcome-icon svg {
-    stroke: var(--text-muted);
-}
-
-.theme-light .welcome-icon svg circle {
-    fill: var(--text-muted);
-}
-
-.theme-light .welcome-icon svg path[stroke^="rgba(139"] {
-    stroke: rgba(120, 113, 108, 0.4);
-}
-
-.theme-light .welcome-icon svg path[stroke^="rgba(139"][stroke-dasharray] {
-    stroke: rgba(120, 113, 108, 0.3);
-}
-
-.theme-light .input-field-group {
-    background: var(--bg-surface);
-    border: 1px solid var(--border);
-    box-shadow: 0 10px 30px rgba(139, 130, 115, 0.08);
-}
-
-.theme-light .input-field-group:focus-within {
-    border-color: var(--accent);
-    box-shadow: 0 10px 35px rgba(16, 185, 129, 0.15);
-}
-
-.theme-light .nexus-input {
-    color: var(--text-main);
-}
-
-.theme-light .nexus-input::placeholder {
-    color: var(--text-muted);
-}
-
-.theme-light .nexus-select {
-    background-color: var(--bg-surface);
-    border-color: var(--border);
-    color: var(--text-main);
-}
-
-.theme-light .nexus-select:focus {
-    border-color: var(--accent);
-    box-shadow: 0 0 8px var(--accent-glow);
-}
-
-.theme-light .chat-thread-container::-webkit-scrollbar-thumb {
-    background: rgba(0, 0, 0, 0.1);
-}
-
-.theme-light .chat-thread-container::-webkit-scrollbar-thumb:hover {
-    background: rgba(0, 0, 0, 0.2);
-}
-

src/NexusReader.UI.Shared/Pages/MyBooks.razor

@@ -4,12 +4,10 @@
 @using NexusReader.UI.Shared.Components.Organisms
 @using NexusReader.Application.DTOs.User
 @using NexusReader.UI.Shared.Services
-@using Microsoft.Extensions.Logging
 @using System.Net.Http.Json
 @inject HttpClient Http
 @inject IReaderNavigationService ReaderNavigation
 @inject ILibraryStateService LibraryStateService
-@inject ILogger<MyBooks> Logger
 
 <div class="my-books-page">
     <header class="my-books-header">
@@ -142,7 +140,7 @@
         }
         catch (Exception ex)
         {
-            Logger.LogError(ex, "[MyBooks] Failed to load books.");
+            Console.WriteLine($"[MyBooks] Failed to load books: {ex.Message}");
             if (OperatingSystem.IsBrowser())
             {
                 _isLoading = false;

src/NexusReader.UI.Shared/Pages/MyBooks.razor.css

@@ -19,13 +19,13 @@
     font-size: 2.5rem;
     font-weight: 700;
     margin: 0 0 0.5rem 0;
-    color: var(--text-main);
+    color: #ffffff;
     letter-spacing: -0.5px;
 }
 
 .header-title-section .subtitle {
     font-size: 1rem;
-    color: var(--text-muted);
+    color: #a1a1aa;
     margin: 0;
 }
 
@@ -67,27 +67,27 @@
     height: 100%;
     overflow: hidden;
     border-radius: 12px;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
     position: relative;
 }
 
 .book-card:hover {
     transform: translateY(-4px);
-    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
+    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
-    border-color: var(--accent);
+    border-color: rgba(16, 185, 129, 0.2);
 }
 
 .book-cover-container {
     position: relative;
     height: 360px;
-    background: rgba(0, 0, 0, 0.05);
+    background: rgba(0, 0, 0, 0.2);
     overflow: hidden;
     display: flex;
     align-items: center;
     justify-content: center;
-    border-bottom: 1px solid var(--border);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
 }
 
 .book-cover {
@@ -145,7 +145,7 @@
     font-size: 1.2rem;
     font-weight: 600;
     margin: 0 0 0.4rem 0;
-    color: var(--text-main);
+    color: #ffffff;
     overflow: hidden;
     text-overflow: ellipsis;
     white-space: nowrap;
@@ -154,7 +154,7 @@
 
 .book-author {
     font-size: 0.9rem;
-    color: var(--text-muted);
+    color: #a1a1aa;
     margin: 0 0 1.25rem 0;
 }
 
@@ -179,7 +179,7 @@
 
 .progress-bar {
     height: 6px;
-    background: var(--border);
+    background: rgba(255, 255, 255, 0.05);
     border-radius: 3px;
     overflow: hidden;
 }
@@ -192,7 +192,7 @@
 
 .progress-text {
     font-size: 0.8rem;
-    color: var(--text-muted);
+    color: #a1a1aa;
     white-space: nowrap;
     overflow: hidden;
     text-overflow: ellipsis;
@@ -232,14 +232,14 @@
     justify-content: center;
     padding: 5rem 2rem;
     text-align: center;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: 12px;
 }
 
 .empty-icon-pulse {
     margin-bottom: 2rem;
-    color: var(--text-muted);
+    color: #a1a1aa;
     animation: pulse 3s infinite alternate;
 }
 
@@ -247,11 +247,11 @@
     font-family: var(--nexus-font-serif);
     font-size: 1.8rem;
     margin: 0 0 0.5rem 0;
-    color: var(--text-main);
+    color: #ffffff;
 }
 
 .empty-state-container p {
-    color: var(--text-muted);
+    color: #a1a1aa;
     max-width: 400px;
     margin: 0 0 2rem 0;
 }
@@ -278,14 +278,14 @@
     border-radius: 12px;
     overflow: hidden;
     height: 480px;
-    background: var(--bg-surface);
+    background: #1a1a1e;
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     opacity: 0.6;
 }
 
 .skeleton-cover {
     height: 360px;
-    background: linear-gradient(90deg, var(--bg-base) 25%, var(--border) 50%, var(--bg-base) 75%);
+    background: linear-gradient(90deg, rgba(255,255,255,0.02) 25%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.02) 75%);
     background-size: 200% 100%;
     animation: loading 1.5s infinite;
 }
@@ -298,7 +298,7 @@
 }
 
 .skeleton-line {
-    background: linear-gradient(90deg, var(--bg-base) 25%, var(--border) 50%, var(--bg-base) 75%);
+    background: linear-gradient(90deg, rgba(255,255,255,0.02) 25%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.02) 75%);
     background-size: 200% 100%;
     animation: loading 1.5s infinite;
     border-radius: 4px;
@@ -336,9 +336,9 @@
     gap: 1.25rem;
     padding: 1.25rem 2.25rem;
     border-radius: 40px;
-    background: var(--bg-surface);
+    background: rgba(13, 13, 15, 0.85);
     backdrop-filter: blur(16px);
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.08);
     animation: scaleIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
 }
 
@@ -354,7 +354,7 @@
 
 .loader-text {
     font-weight: 500;
-    color: var(--text-main);
+    color: #ffffff;
     font-size: 0.95rem;
 }
 
@@ -383,65 +383,3 @@
     from { transform: translate(-50%, -50%) scale(0.9); opacity: 0; }
     to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
 }
-
-/* ============================================
-   LIGHT THEME OVERRIDES — Warm Paper / Soft Sepia
-   ============================================ */
-
-.theme-light .book-card:hover {
-    box-shadow: 0 12px 30px rgba(139, 130, 115, 0.15);
-}
-
-.theme-light .book-cover-container {
-    background: rgba(0, 0, 0, 0.03);
-}
-
-.theme-light .cover-overlay {
-    background: rgba(0, 0, 0, 0.5);
-}
-
-.theme-light .book-card:hover .read-action {
-    color: #292524;
-}
-
-.theme-light .progress-bar {
-    background: #e4e1d9;
-}
-
-@media (max-width: 767px) {
-    .my-books-page {
-        padding: 1.5rem 1rem calc(1.5rem + 72px + env(safe-area-inset-bottom, 0px)) !important;
-    }
-    
-    .my-books-header {
-        margin-bottom: 1.5rem;
-        flex-direction: column;
-        align-items: stretch;
-        gap: 1rem;
-    }
-    
-    .header-title-section h1 {
-        font-size: 1.75rem;
-        text-align: center;
-    }
-
-    .header-title-section .subtitle {
-        text-align: center;
-    }
-    
-    .add-book-trigger {
-        width: 100%;
-        text-align: center;
-        padding: 0.9rem 1.5rem;
-    }
-    
-    .books-grid, .loading-grid {
-        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
-        gap: 1.25rem;
-    }
-
-    .book-cover-container {
-        height: 200px !important;
-    }
-}
-

src/NexusReader.UI.Shared/Pages/Settings.razor.css

@@ -72,40 +72,3 @@
     from { opacity: 0; transform: translateY(15px); }
     to { opacity: 1; transform: translateY(0); }
 }
-
-/* ============================================================
-   LIGHT THEME OVERRIDES — "Warm Paper / Soft Sepia"
-   ============================================================ */
-
-.theme-light .settings-page > h1 {
-    background: none;
-    -webkit-text-fill-color: initial;
-    color: var(--text-main);
-}
-
-.theme-light .settings-page > p {
-    color: var(--text-muted);
-}
-
-.theme-light .settings-section h2 {
-    color: var(--text-main);
-}
-
-.theme-light .settings-section p {
-    color: var(--text-muted);
-}
-
-.theme-light .diag-btn {
-    background: rgba(16, 185, 129, 0.05);
-    color: var(--accent);
-    border: 1px solid rgba(16, 185, 129, 0.2);
-}
-
-.theme-light .diag-btn:hover {
-    background: var(--accent);
-    color: #ffffff;
-    border-color: var(--accent);
-    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
-    transform: translateY(-2px);
-}
-

src/NexusReader.UI.Shared/Services/IRecommendationService.cs

@@ -1,23 +0,0 @@
-using System.Collections.Generic;
-using System.Threading;
-using System.Threading.Tasks;
-using NexusReader.Application.Queries.Recommendations;
-
-namespace NexusReader.UI.Shared.Services;
-
-/// <summary>
-/// Provides contextual book recommendations based on the user's active reading state.
-/// Abstracts the HTTP transport layer from Blazor UI components.
-/// </summary>
-public interface IRecommendationService
-{
-    /// <summary>
-    /// Fetches contextual recommendations for the authenticated user.
-    /// </summary>
-    /// <param name="cancellationToken">A token to cancel the operation.</param>
-    /// <returns>
-    /// A list of <see cref="RecommendationDto"/> on success, or an empty list when none are available.
-    /// Returns <c>null</c> if the request fails due to a transport or server error.
-    /// </returns>
-    Task<List<RecommendationDto>?> GetRecommendationsAsync(CancellationToken cancellationToken = default);
-}

src/NexusReader.UI.Shared/Services/IThemeService.cs

@@ -1,14 +1,9 @@
-using NexusReader.Domain.Enums;
-
 namespace NexusReader.UI.Shared.Services;
 
 public interface IThemeService
 {
-    ThemeMode Mode { get; }
     bool IsLightMode { get; }
-    event Action<ThemeMode>? OnThemeChanged;
+    event Func<Task>? OnThemeChanged;
-    
     Task InitializeAsync();
-    Task SetThemeAsync(ThemeMode mode);
     Task ToggleTheme();
 }

src/NexusReader.UI.Shared/Services/ThemeService.cs

@@ -1,155 +1,42 @@
 using Microsoft.JSInterop;
-using NexusReader.Domain.Enums;
-using NexusReader.Application.Abstractions.Services;
 
 namespace NexusReader.UI.Shared.Services;
 
 public sealed class ThemeService : IThemeService
 {
     private readonly IJSRuntime _jsRuntime;
-    private readonly IUserPreferenceStore _userPreferenceStore;
+    public bool IsLightMode { get; private set; } = false;
-    private readonly SemaphoreSlim _semaphore = new(1, 1);
+    public event Func<Task>? OnThemeChanged;
-    private bool _isInitialized;
-    private bool _systemPrefersLight;
 
-    public ThemeMode Mode { get; private set; } = ThemeMode.System;
+    public ThemeService(IJSRuntime jsRuntime)
-
-    public bool IsLightMode => Mode == ThemeMode.LightSepia || (Mode == ThemeMode.System && _systemPrefersLight);
-
-    public event Action<ThemeMode>? OnThemeChanged;
-
-    public ThemeService(IJSRuntime jsRuntime, IUserPreferenceStore userPreferenceStore)
     {
         _jsRuntime = jsRuntime;
-        _userPreferenceStore = userPreferenceStore;
     }
 
     public async Task InitializeAsync()
     {
-        if (_isInitialized) return;
-
-        await _semaphore.WaitAsync();
         try
         {
-            if (_isInitialized) return;
+            IsLightMode = await _jsRuntime.InvokeAsync<bool>("themeInterop.isLightMode");
-
+            if (OnThemeChanged != null) await OnThemeChanged();
-            ThemeMode localMode = ThemeMode.System;
-            try
-            {
-                var cachedThemeVal = await _jsRuntime.InvokeAsync<string?>("localStorage.getItem", "theme-mode");
-                if (Enum.TryParse<ThemeMode>(cachedThemeVal, out var parsedMode))
-                {
-                    localMode = parsedMode;
-                }
-                else if (cachedThemeVal == "light" || cachedThemeVal == "theme-light")
-                {
-                    localMode = ThemeMode.LightSepia;
-                }
-                else if (cachedThemeVal == "dark" || cachedThemeVal == "theme-dark")
-                {
-                    localMode = ThemeMode.Dark;
-                }
-                
-                _systemPrefersLight = await _jsRuntime.InvokeAsync<bool>("themeInterop.isSystemLight");
         }
         catch
         {
-                // Silent catch for pre-rendering or unit tests
+            // Fail silently during prerendering or if JS is not available yet
-            }
-
-            Mode = localMode;
-            _isInitialized = true;
-            
-            await ApplyThemeToDomAsync(Mode);
-
-            // Asynchronously sync with the cloud to check for updates from other devices
-            _ = Task.Run(async () =>
-            {
-                try
-                {
-                    var cloudResult = await _userPreferenceStore.GetThemePreferenceAsync();
-                    if (cloudResult.IsSuccess && cloudResult.Value != Mode)
-                    {
-                        await SetThemeInternalAsync(cloudResult.Value, saveToCloud: false);
-                    }
-                }
-                catch
-                {
-                    // Fail silently for background task/network errors
-                }
-            });
-        }
-        finally
-        {
-            _semaphore.Release();
-        }
-    }
-
-    public async Task SetThemeAsync(ThemeMode mode)
-    {
-        await SetThemeInternalAsync(mode, saveToCloud: true);
-    }
-
-    private async Task SetThemeInternalAsync(ThemeMode mode, bool saveToCloud)
-    {
-        await _semaphore.WaitAsync();
-        try
-        {
-            if (Mode == mode && _isInitialized) return;
-
-            Mode = mode;
-            _isInitialized = true;
-
-            await ApplyThemeToDomAsync(mode);
-
-            OnThemeChanged?.Invoke(mode);
-
-            if (saveToCloud)
-            {
-                _ = Task.Run(async () =>
-                {
-                    try
-                    {
-                        await _userPreferenceStore.SaveThemePreferenceAsync(mode);
-                    }
-                    catch
-                    {
-                        // Fail silently for background cloud sync errors
-                    }
-                });
-            }
-        }
-        finally
-        {
-            _semaphore.Release();
         }
     }
 
     public async Task ToggleTheme()
     {
-        var nextMode = IsLightMode ? ThemeMode.Dark : ThemeMode.LightSepia;
+        IsLightMode = !IsLightMode;
-        await SetThemeAsync(nextMode);
-    }
-
-    private async Task ApplyThemeToDomAsync(ThemeMode mode)
-    {
         try
         {
-            string themeClass = "theme-dark"; // Default
+            await _jsRuntime.InvokeVoidAsync("themeInterop.setLightMode", IsLightMode);
-            if (mode == ThemeMode.LightSepia)
-            {
-                themeClass = "theme-light";
-            }
-            else if (mode == ThemeMode.System)
-            {
-                themeClass = _systemPrefersLight ? "theme-light" : "theme-dark";
-            }
-
-            await _jsRuntime.InvokeVoidAsync("themeInterop.setCachedTheme", themeClass, ((int)mode).ToString());
         }
         catch
         {
-            // Silent catch for pre-rendering
+            // Fail silently
         }
+        if (OnThemeChanged != null) await OnThemeChanged();
     }
 }

src/NexusReader.UI.Shared/_Imports.razor

@@ -20,5 +20,3 @@
 @using NexusReader.Application.Abstractions.Services
 @using NexusReader.Application.DTOs.User
 @using NexusReader.Application.Queries.Reader
-@using NexusReader.Application.Queries.Recommendations
-@using NexusReader.Domain.Enums

src/NexusReader.UI.Shared/wwwroot/app.css

@@ -1,29 +1,17 @@
-@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Merriweather:ital,wght@0,300;0,400;0,700;1,400&family=Azeret+Mono:wght@300;400;500;600&display=swap');
+@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Merriweather:ital,wght@0,300;0,400;0,700;1,400&display=swap');
 
 :root {
-    /* Semantic design tokens - default to Modern Deep Dark (Dark Mode) */
+    --nexus-neon: #00ff99;
-    --bg-base: #121214;
+    --nexus-neon-glow: rgba(0, 255, 153, 0.3);
-    --bg-surface: #1a1a1e;
+    --nexus-bg: #121214;
-    --text-main: #ffffff;
+    --nexus-card: #1a1a1e;
-    --text-muted: #a1a1aa;
+    --nexus-text: #ffffff;
-    --accent: #00ff99;
-    --accent-glow: rgba(0, 255, 153, 0.3);
-    --border: rgba(255, 255, 255, 0.05);
-
-    /* Legacy mapping for backwards compatibility */
-    --nexus-neon: var(--accent);
-    --nexus-neon-glow: var(--accent-glow);
-    --nexus-bg: var(--bg-base);
-    --nexus-card: var(--bg-surface);
-    --nexus-text: var(--text-main);
     --nexus-paper: #F9F9F9;
     --nexus-font-sans: 'Inter', sans-serif;
     --nexus-font-serif: 'Merriweather', serif;
-    --nexus-font-mono: 'Azeret Mono', monospace;
 
     /* Global Selection Style Override */
     --nexus-selection: rgba(0, 255, 153, 0.25);
-    --nexus-accent: var(--accent);
 
     /* Graph Nodes Theme Custom Properties (Dark Mode) */
     --nexus-graph-bg: radial-gradient(circle, #1a1a1a 0%, #121212 100%);
@@ -61,42 +49,38 @@
     --nexus-node-concept-text: #e0e0e0;
 }
 
-::selection,
+::selection {
-.ProseMirror ::selection,
+    background-color: var(--nexus-selection);
-.ProseMirror::selection,
+    color: inherit;
-.ProseMirror *::selection {
-    background-color: var(--nexus-selection) !important;
-    color: inherit !important;
 }
 
 
 /* Global Semantic Theme Mapping */
-:root {
+--nexus-primary: var(--nexus-neon);
-    --nexus-primary: var(--nexus-neon);
+--nexus-primary-glow: var(--nexus-neon-glow);
-    --nexus-primary-glow: var(--nexus-neon-glow);
+--nexus-primary-hover: #00e688;
-    --nexus-primary-hover: #00e688;
 
-    /* Standard Layout Tokens */
+/* Standard Layout Tokens */
-    --radius-sm: 8px;
+--radius-sm: 8px;
-    --radius-md: 12px;
+--radius-md: 12px;
-    --radius-lg: 16px;
+--radius-lg: 16px;
-    --radius-xl: 20px;
+--radius-xl: 20px;
 
-    /* Safe Area Insets with fallbacks */
+/* Safe Area Insets with fallbacks */
-    --safe-area-inset-top: env(safe-area-inset-top, 0px);
+--safe-area-inset-top: env(safe-area-inset-top, 0px);
-    --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
+--safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
-    --safe-area-inset-left: env(safe-area-inset-left, 0px);
+--safe-area-inset-left: env(safe-area-inset-left, 0px);
-    --safe-area-inset-right: env(safe-area-inset-right, 0px);
+--safe-area-inset-right: env(safe-area-inset-right, 0px);
 
-    /* Transitions */
+/* Transitions */
-    --nexus-transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
+--nexus-transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
 }
 
 /* Global Glassmorphism with Fallback */
 .glass-panel {
     background: rgba(20, 20, 20, 0.85);
     /* Darker fallback for readability */
-    border: 1px solid var(--border);
+    border: 1px solid rgba(255, 255, 255, 0.05);
     border-radius: var(--radius-xl);
     padding: 1.5rem;
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
@@ -149,40 +133,11 @@
 }
 
 
-.theme-dark {
-    /* Semantic design tokens - Modern Deep Dark */
-    --bg-base: #121214;
-    --bg-surface: #1a1a1e;
-    --text-main: #ffffff;
-    --text-muted: #a1a1aa;
-    --accent: #00ff99;
-    --accent-glow: rgba(0, 255, 153, 0.3);
-    --border: rgba(255, 255, 255, 0.05);
-
-    /* Legacy mapping for backwards compatibility */
-    --nexus-bg: var(--bg-base);
-    --nexus-card: var(--bg-surface);
-    --nexus-text: var(--text-main);
-    --nexus-selection: rgba(0, 255, 153, 0.25);
-    --nexus-accent: var(--accent);
-}
-
 .theme-light {
-    /* Semantic design tokens - Warm Paper / Soft Sepia */
+    --nexus-bg: #f4f1ea;
-    --bg-base: #f4f1ea;
+    --nexus-card: #ffffff;
-    --bg-surface: #ffffff;
+    --nexus-text: #2d2a26;
-    --text-main: #2d2a26;
-    --text-muted: #78716c;
-    --accent: #10b981;
-    --accent-glow: rgba(16, 185, 129, 0.2);
-    --border: rgba(0, 0, 0, 0.08);
-
-    /* Legacy mapping for backwards compatibility */
-    --nexus-bg: var(--bg-base);
-    --nexus-card: var(--bg-surface);
-    --nexus-text: var(--text-main);
     --nexus-selection: rgba(16, 185, 129, 0.18);
-    --nexus-accent: var(--accent);
 
     /* Graph Nodes Theme Custom Properties (Light Mode) */
     --nexus-graph-bg: radial-gradient(circle, #ffffff 0%, #e8e4da 100%);
@@ -449,546 +404,3 @@ h1:focus {
         transform: scale(0.95);
     }
 }
-
-/* ==========================================================================
-   Selection Pop-up Menu & Crepe Toolbar Unification (SelectionAiPanel Style)
-   ========================================================================== */
-
-/* 1. Pop-up Containers (Glassmorphism Capsule) */
-.milkdown-popover,
-.popover,
-.prosemirror-bubble-menu,
-.milkdown .popover,
-.milkdown-popover.popover,
-.milkdown-toolbar {
-    background: rgba(24, 24, 28, 0.85) !important;
-    backdrop-filter: blur(12px) !important;
-    -webkit-backdrop-filter: blur(12px) !important;
-    border: 1px solid rgba(255, 255, 255, 0.08) !important;
-    border-radius: 8px !important;
-    padding: 4px 6px !important;
-    margin: 0 !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5), 0 12px 28px rgba(0, 0, 0, 0.4) !important;
-    display: inline-flex; /* Removed !important to allow Tippy.js to hide popovers via inline style */
-    align-items: center !important;
-    gap: 4px !important;
-    z-index: 10000 !important;
-    box-sizing: border-box !important;
-    animation: fadeInScaleGlobal 0.18s cubic-bezier(0.16, 1, 0.3, 1) !important;
-}
-
-/* Light Theme (Warm Paper) Overrides for Container */
-.theme-light .milkdown-popover,
-.theme-light .popover,
-.theme-light .prosemirror-bubble-menu,
-.theme-light .milkdown .popover,
-.theme-light .milkdown-popover.popover,
-.theme-light .milkdown-toolbar {
-    background: rgba(254, 254, 254, 0.95) !important;
-    border: 1px solid rgba(0, 0, 0, 0.08) !important;
-    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05), 0 10px 30px rgba(0, 0, 0, 0.04) !important;
-}
-
-/* 2. Button & Item Formatting (Reader Selection Toolbar Style) */
-.milkdown-popover button,
-.popover button,
-.prosemirror-bubble-menu button,
-.milkdown .popover button,
-.milkdown-toolbar button {
-    text-transform: none !important;
-    font-size: 0.8rem !important;
-    font-weight: 500 !important;
-    color: #e4e4e7 !important; /* zinc-200 */
-    background: transparent !important;
-    border: none !important;
-    padding: 6px 12px !important;
-    margin: 0 !important;
-    border-radius: 6px !important;
-    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
-    display: inline-flex !important;
-    align-items: center !important;
-    justify-content: center !important;
-    cursor: pointer !important;
-    gap: 6px !important;
-}
-
-/* Crepe's Specific Square Icon-Only Toolbar Items */
-.milkdown-toolbar .toolbar-item {
-    text-transform: none !important;
-    color: #e4e4e7 !important; /* zinc-200 */
-    background: transparent !important;
-    border: none !important;
-    margin: 0 !important;
-    border-radius: 6px !important;
-    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
-    cursor: pointer !important;
-    width: 28px !important;
-    height: 28px !important;
-    padding: 6px !important;
-    display: inline-flex !important;
-    justify-content: center !important;
-    align-items: center !important;
-    box-sizing: border-box !important;
-}
-
-/* Icon overrides inside buttons */
-.milkdown-popover button svg,
-.popover button svg,
-.prosemirror-bubble-menu button svg,
-.milkdown .popover button svg,
-.milkdown-popover button i,
-.popover button i,
-.prosemirror-bubble-menu button i,
-.milkdown .popover button i,
-.milkdown-toolbar button svg,
-.milkdown-toolbar .toolbar-item svg,
-.milkdown-toolbar button i,
-.milkdown-toolbar .toolbar-item i {
-    color: currentColor !important;
-    fill: currentColor !important;
-    width: 14px !important;
-    height: 14px !important;
-}
-
-/* Hover effects (zinc-200 / zinc-100 highlight) */
-.milkdown-popover button:hover:not(.active),
-.popover button:hover:not(.active),
-.prosemirror-bubble-menu button:hover:not(.active),
-.milkdown-toolbar button:hover:not(.active),
-.milkdown-toolbar .toolbar-item:hover:not(.active) {
-    background: rgba(255, 255, 255, 0.05) !important;
-    color: #ffffff !important;
-}
-
-/* Active formatting state colors (var(--accent, #00ff99)) */
-.milkdown-popover button.active,
-.popover button.active,
-.prosemirror-bubble-menu button.active,
-.milkdown-popover button[aria-pressed="true"],
-.popover button[aria-pressed="true"],
-.prosemirror-bubble-menu button[aria-pressed="true"],
-.milkdown-toolbar button.active,
-.milkdown-toolbar .toolbar-item.active,
-.milkdown-toolbar button[aria-pressed="true"],
-.milkdown-toolbar .toolbar-item[aria-pressed="true"] {
-    color: var(--accent, #00ff99) !important;
-}
-
-.milkdown-popover button.active:hover,
-.popover button.active:hover,
-.prosemirror-bubble-menu button.active:hover,
-.milkdown-popover button[aria-pressed="true"]:hover,
-.popover button[aria-pressed="true"]:hover,
-.prosemirror-bubble-menu button[aria-pressed="true"]:hover,
-.milkdown-toolbar button.active:hover,
-.milkdown-toolbar .toolbar-item.active:hover,
-.milkdown-toolbar button[aria-pressed="true"]:hover,
-.milkdown-toolbar .toolbar-item[aria-pressed="true"]:hover {
-    background: rgba(0, 255, 153, 0.08) !important;
-    box-shadow: 0 0 12px rgba(0, 255, 153, 0.15) !important;
-    color: var(--accent, #00ff99) !important;
-}
-
-/* 3. Light Theme Overrides for Buttons */
-.theme-light .milkdown-popover button,
-.theme-light .popover button,
-.theme-light .prosemirror-bubble-menu button,
-.theme-light .milkdown-toolbar button,
-.theme-light .milkdown-toolbar .toolbar-item {
-    color: #57524e !important;
-}
-
-.theme-light .milkdown-popover button:hover:not(.active),
-.theme-light .popover button:hover:not(.active),
-.theme-light .prosemirror-bubble-menu button:hover:not(.active),
-.theme-light .milkdown-toolbar button:hover:not(.active),
-.theme-light .milkdown-toolbar .toolbar-item:hover:not(.active) {
-    background: rgba(0, 0, 0, 0.04) !important;
-    color: #1c1917 !important;
-}
-
-.theme-light .milkdown-popover button.active,
-.theme-light .popover button.active,
-.theme-light .prosemirror-bubble-menu button.active,
-.theme-light .milkdown-popover button[aria-pressed="true"],
-.theme-light .popover button[aria-pressed="true"],
-.theme-light .prosemirror-bubble-menu button[aria-pressed="true"],
-.theme-light .milkdown-toolbar button.active,
-.theme-light .milkdown-toolbar .toolbar-item.active,
-.theme-light .milkdown-toolbar button[aria-pressed="true"],
-.theme-light .milkdown-toolbar .toolbar-item[aria-pressed="true"] {
-    color: #10b981 !important;
-}
-
-.theme-light .milkdown-popover button.active:hover,
-.theme-light .popover button.active:hover,
-.theme-light .prosemirror-bubble-menu button.active:hover,
-.theme-light .milkdown-popover button[aria-pressed="true"]:hover,
-.theme-light .popover button[aria-pressed="true"]:hover,
-.theme-light .prosemirror-bubble-menu button[aria-pressed="true"]:hover,
-.theme-light .milkdown-toolbar button.active:hover,
-.theme-light .milkdown-toolbar .toolbar-item.active:hover,
-.theme-light .milkdown-toolbar button[aria-pressed="true"]:hover,
-.theme-light .milkdown-toolbar .toolbar-item[aria-pressed="true"]:hover {
-    background: rgba(16, 185, 129, 0.06) !important;
-    box-shadow: 0 0 12px rgba(16, 185, 129, 0.1) !important;
-    color: #10b981 !important;
-}
-
-/* 4. Dividers Alignment */
-.milkdown-popover .divider,
-.popover .divider,
-.prosemirror-bubble-menu .divider,
-.milkdown .popover .divider,
-.milkdown-toolbar .divider {
-    width: 1px !important;
-    height: 16px !important;
-    background-color: rgba(255, 255, 255, 0.1) !important;
-    margin: 0 4px !important;
-    border: none !important;
-}
-
-.theme-light .milkdown-popover .divider,
-.theme-light .popover .divider,
-.theme-light .prosemirror-bubble-menu .divider,
-.theme-light .milkdown-toolbar .divider {
-    background-color: rgba(0, 0, 0, 0.08) !important;
-}
-
-    to {
-        opacity: 1;
-        transform: scale(1);
-    }
-}
-
-/* ==========================================================================
-   Editor Table & General Control Elements Theming (SelectionAiPanel Style)
-   ========================================================================== */
-
-/* 1. Cell Drag Handles (Column and Row Drag Handles) */
-.milkdown .milkdown-table-block .cell-handle {
-    background-color: rgba(24, 24, 28, 0.85) !important;
-    backdrop-filter: blur(12px) !important;
-    -webkit-backdrop-filter: blur(12px) !important;
-    border: 1px solid rgba(255, 255, 255, 0.08) !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
-    color: #e4e4e7 !important;
-    transition: all 0.2s ease !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .cell-handle {
-    background-color: rgba(254, 254, 254, 0.95) !important;
-    border: 1px solid rgba(0, 0, 0, 0.08) !important;
-    color: #57524e !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05) !important;
-}
-
-.milkdown .milkdown-table-block .cell-handle:hover {
-    background-color: rgba(255, 255, 255, 0.15) !important;
-    color: #ffffff !important;
-    border-color: var(--accent) !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .cell-handle:hover {
-    background-color: rgba(0, 0, 0, 0.08) !important;
-    color: #1c1917 !important;
-    border-color: #10b981 !important;
-}
-
-.milkdown .milkdown-table-block .cell-handle svg {
-    fill: currentColor !important;
-    color: currentColor !important;
-}
-
-/* 2. Drag Handle Options Popup Menu (.button-group) */
-.milkdown .milkdown-table-block .cell-handle .button-group {
-    background: rgba(24, 24, 28, 0.85) !important;
-    backdrop-filter: blur(12px) !important;
-    -webkit-backdrop-filter: blur(12px) !important;
-    border: 1px solid rgba(255, 255, 255, 0.08) !important;
-    border-radius: 8px !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5), 0 12px 28px rgba(0, 0, 0, 0.4) !important;
-    padding: 4px !important;
-    gap: 4px !important;
-    display: flex; /* Removed !important to allow toggling via data-show attribute */
-}
-
-.theme-light .milkdown .milkdown-table-block .cell-handle .button-group {
-    background: rgba(254, 254, 254, 0.95) !important;
-    border: 1px solid rgba(0, 0, 0, 0.08) !important;
-    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05), 0 10px 30px rgba(0, 0, 0, 0.04) !important;
-}
-
-.milkdown .milkdown-table-block .cell-handle .button-group button {
-    background: transparent !important;
-    border: none !important;
-    margin: 0 !important;
-    border-radius: 6px !important;
-    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
-    cursor: pointer !important;
-    width: 28px !important;
-    height: 28px !important;
-    padding: 6px !important;
-    display: inline-flex !important;
-    justify-content: center !important;
-    align-items: center !important;
-    box-sizing: border-box !important;
-    color: #e4e4e7 !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .cell-handle .button-group button {
-    color: #57524e !important;
-}
-
-.milkdown .milkdown-table-block .cell-handle .button-group button:hover {
-    background: rgba(255, 255, 255, 0.05) !important;
-    color: #ffffff !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .cell-handle .button-group button:hover {
-    background: rgba(0, 0, 0, 0.04) !important;
-    color: #1c1917 !important;
-}
-
-.milkdown .milkdown-table-block .cell-handle .button-group button:active {
-    background: rgba(0, 255, 153, 0.08) !important;
-    color: var(--accent, #00ff99) !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .cell-handle .button-group button:active {
-    background: rgba(16, 185, 129, 0.06) !important;
-    color: #10b981 !important;
-}
-
-.milkdown .milkdown-table-block .cell-handle .button-group button svg {
-    color: currentColor !important;
-    fill: currentColor !important;
-    width: 14px !important;
-    height: 14px !important;
-}
-
-/* 3. Table Column/Row Insertion Lines & Add Buttons */
-.milkdown .milkdown-table-block .line-handle {
-    background-color: var(--accent) !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .line-handle {
-    background-color: #10b981 !important;
-}
-
-.milkdown .milkdown-table-block .line-handle .add-button {
-    background-color: rgba(24, 24, 28, 0.85) !important;
-    backdrop-filter: blur(12px) !important;
-    -webkit-backdrop-filter: blur(12px) !important;
-    border: 1px solid rgba(255, 255, 255, 0.08) !important;
-    color: #e4e4e7 !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .line-handle .add-button {
-    background-color: rgba(254, 254, 254, 0.95) !important;
-    border: 1px solid rgba(0, 0, 0, 0.08) !important;
-    color: #57524e !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05) !important;
-}
-
-.milkdown .milkdown-table-block .line-handle .add-button:hover {
-    background-color: rgba(255, 255, 255, 0.15) !important;
-    color: #ffffff !important;
-    border-color: var(--accent) !important;
-}
-
-.theme-light .milkdown .milkdown-table-block .line-handle .add-button:hover {
-    background-color: rgba(0, 0, 0, 0.08) !important;
-    color: #1c1917 !important;
-    border-color: #10b981 !important;
-}
-
-.milkdown .milkdown-table-block .line-handle .add-button svg {
-    width: 12px !important;
-    height: 12px !important;
-    color: currentColor !important;
-    fill: currentColor !important;
-}
-
-/* 4. Paragraph Block Drag Handles */
-.milkdown .milkdown-block-handle {
-    background-color: rgba(24, 24, 28, 0.85) !important;
-    backdrop-filter: blur(12px) !important;
-    -webkit-backdrop-filter: blur(12px) !important;
-    border: 1px solid rgba(255, 255, 255, 0.08) !important;
-    border-radius: 6px !important;
-    padding: 2px !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
-    display: flex; /* Removed !important to allow toggling */
-    gap: 2px !important;
-}
-
-.theme-light .milkdown .milkdown-block-handle {
-    background-color: rgba(254, 254, 254, 0.95) !important;
-    border: 1px solid rgba(0, 0, 0, 0.08) !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05) !important;
-}
-
-.milkdown .milkdown-block-handle .operation-item {
-    border-radius: 4px !important;
-    width: 24px !important;
-    height: 24px !important;
-    padding: 4px !important;
-    display: inline-flex !important;
-    justify-content: center !important;
-    align-items: center !important;
-    color: #e4e4e7 !important;
-    transition: all 0.2s ease !important;
-}
-
-.theme-light .milkdown .milkdown-block-handle .operation-item {
-    color: #57524e !important;
-}
-
-.milkdown .milkdown-block-handle .operation-item:hover {
-    background: rgba(255, 255, 255, 0.05) !important;
-    color: #ffffff !important;
-}
-
-.theme-light .milkdown .milkdown-block-handle .operation-item:hover {
-    background: rgba(0, 0, 0, 0.04) !important;
-    color: #1c1917 !important;
-}
-
-.milkdown .milkdown-block-handle .operation-item.active {
-    background: rgba(0, 255, 153, 0.08) !important;
-    color: var(--accent, #00ff99) !important;
-}
-
-.theme-light .milkdown .milkdown-block-handle .operation-item.active {
-    background: rgba(16, 185, 129, 0.06) !important;
-    color: #10b981 !important;
-}
-
-.milkdown .milkdown-block-handle .operation-item svg {
-    width: 14px !important;
-    height: 14px !important;
-    fill: currentColor !important;
-    color: currentColor !important;
-}
-
-/* 5. Slash Commands Menu */
-.milkdown .milkdown-slash-menu {
-    background: rgba(24, 24, 28, 0.85) !important;
-    backdrop-filter: blur(12px) !important;
-    -webkit-backdrop-filter: blur(12px) !important;
-    border: 1px solid rgba(255, 255, 255, 0.08) !important;
-    border-radius: 8px !important;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5), 0 12px 28px rgba(0, 0, 0, 0.4) !important;
-    font-family: var(--nexus-font-sans) !important;
-    color: #ffffff !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu {
-    background: rgba(254, 254, 254, 0.95) !important;
-    border: 1px solid rgba(0, 0, 0, 0.08) !important;
-    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05), 0 10px 30px rgba(0, 0, 0, 0.04) !important;
-    color: #2d2a26 !important;
-}
-
-.milkdown .milkdown-slash-menu .tab-group ul li {
-    color: #a1a1aa !important;
-    border-radius: 6px !important;
-    transition: all 0.2s ease !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .tab-group ul li {
-    color: #78716c !important;
-}
-
-.milkdown .milkdown-slash-menu .tab-group ul li:hover {
-    background: rgba(255, 255, 255, 0.05) !important;
-    color: #ffffff !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .tab-group ul li:hover {
-    background: rgba(0, 0, 0, 0.04) !important;
-    color: #1c1917 !important;
-}
-
-.milkdown .milkdown-slash-menu .tab-group ul li.selected {
-    background: rgba(0, 255, 153, 0.08) !important;
-    color: var(--accent) !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .tab-group ul li.selected {
-    background: rgba(16, 185, 129, 0.06) !important;
-    color: #10b981 !important;
-}
-
-.milkdown .milkdown-slash-menu .menu-groups .menu-group li {
-    color: #e4e4e7 !important;
-    border-radius: 6px !important;
-    transition: all 0.2s ease !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .menu-groups .menu-group li {
-    color: #57524e !important;
-}
-
-.milkdown .milkdown-slash-menu .menu-groups .menu-group li svg {
-    color: #a1a1aa !important;
-    fill: #a1a1aa !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .menu-groups .menu-group li svg {
-    color: #78716c !important;
-    fill: #78716c !important;
-}
-
-.milkdown .milkdown-slash-menu .menu-groups .menu-group li.hover {
-    background: rgba(255, 255, 255, 0.05) !important;
-    color: #ffffff !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .menu-groups .menu-group li.hover {
-    background: rgba(0, 0, 0, 0.04) !important;
-    color: #1c1917 !important;
-}
-
-.milkdown .milkdown-slash-menu .menu-groups .menu-group li.active {
-    background: rgba(0, 255, 153, 0.08) !important;
-    color: var(--accent) !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .menu-groups .menu-group li.active {
-    background: rgba(16, 185, 129, 0.06) !important;
-    color: #10b981 !important;
-}
-
-.milkdown .milkdown-slash-menu .menu-groups .menu-group li.active svg {
-    color: var(--accent) !important;
-    fill: var(--accent) !important;
-}
-
-.theme-light .milkdown .milkdown-slash-menu .menu-groups .menu-group li.active svg {
-    color: #10b981 !important;
-    fill: #10b981 !important;
-}
-
-/* 6. Explicit Visibility State Overrides */
-.milkdown-popover[data-show="false"],
-.popover[data-show="false"],
-.prosemirror-bubble-menu[data-show="false"],
-.milkdown-toolbar[data-show="false"],
-.milkdown-slash-menu[data-show="false"],
-.milkdown-table-block .cell-handle .button-group[data-show="false"],
-.milkdown-link-preview[data-show="false"],
-.milkdown-link-edit[data-show="false"] {
-    display: none !important;
-    opacity: 0 !important;
-    visibility: hidden !important;
-    pointer-events: none !important;
-}
-
-/* 7. Table Overflow Clipping Fix for Handles */
-.milkdown .tableWrapper {
-    overflow: visible !important;
-}
-

src/NexusReader.UI.Shared/wwwroot/js/milkdownWrapper.js

@@ -1,244 +0,0 @@
-// Initialize global stores on window to share state across dynamically imported module instances (preventing cache-buster isolation)
-if (typeof window !== 'undefined') {
-    if (!window.editorCache) window.editorCache = new Map();
-    if (!window.editorStates) window.editorStates = new Map();
-}
-
-const editorCache = typeof window !== 'undefined' ? window.editorCache : new Map();
-const editorStates = typeof window !== 'undefined' ? window.editorStates : new Map();
-
-/**
- * Asynchronously injects a stylesheet link tag into the document head
- * and returns a Promise that resolves when the stylesheet is fully loaded.
- */
-async function ensureStylesheet(href) {
-    if (document.querySelector(`link[href="${href}"]`)) {
-        return Promise.resolve();
-    }
-    return new Promise((resolve, reject) => {
-        const link = document.createElement('link');
-        link.rel = 'stylesheet';
-        link.href = href;
-        link.onload = () => resolve();
-        link.onerror = (err) => reject(new Error(`Failed to load stylesheet: ${href}. ${err}`));
-        document.head.appendChild(link);
-    });
-}
-
-/**
- * Initializes a Milkdown Crepe editor on the specified element.
- */
-export async function initEditor(elementId, dotNetHelper, initialMarkdown) {
-    // Check if already destroyed or initializing
-    if (editorStates.get(elementId) === 'destroyed') {
-        console.warn(`[Milkdown] initEditor called on already destroyed element: ${elementId}. Aborting.`);
-        return;
-    }
-    if (editorStates.get(elementId) === 'initializing' || editorStates.get(elementId) === 'ready') {
-        console.warn(`[Milkdown] Editor is already initializing or ready for element: ${elementId}. Ignoring.`);
-        return;
-    }
-
-    editorStates.set(elementId, 'initializing');
-
-    // Guard 1: Destroy previous cached editor instance with the same ID if it exists
-    if (editorCache.has(elementId)) {
-        console.warn(`[Milkdown] Editor instance already exists in cache for: ${elementId}. Destroying first.`);
-        await destroyEditor(elementId);
-    }
-
-    const container = document.getElementById(elementId);
-    if (!container) {
-        console.error(`[Milkdown] Container with ID "${elementId}" not found.`);
-        editorStates.delete(elementId);
-        return;
-    }
-
-    // Guard 2: Clear container children to prevent double-initialization of crepe editor DOM
-    if (container.children.length > 0) {
-        console.warn(`[Milkdown] Container "${elementId}" is not empty. Clearing children before initialization.`);
-        container.innerHTML = '';
-    }
-
-    // Guard 3: Search the parent workspace card to purge any other leftover editor components
-    const parentCard = container.closest('.milkdown-premium-container') || container.parentElement;
-    if (parentCard) {
-        const existingEditors = parentCard.querySelectorAll('.milkdown, .crepe');
-        if (existingEditors.length > 0) {
-            console.warn(`[Milkdown] Found ${existingEditors.length} leftover editor DOM elements in the workspace card. Purging them.`);
-            existingEditors.forEach(el => el.remove());
-        }
-    }
-
-    try {
-        // Condition 2: Prevent FOUC by loading stylesheets before instantiating the editor
-        await ensureStylesheet('/_content/NexusReader.UI.Shared/css/vendor/milkdown-crepe.css');
-
-        if (editorStates.get(elementId) === 'destroyed') {
-            console.warn(`[Milkdown] Element ${elementId} destroyed during stylesheet loading. Aborting.`);
-            return;
-        }
-
-        // Dynamically import the local JS bundle
-        await import('/_content/NexusReader.UI.Shared/js/vendor/milkdown-crepe.js');
-
-        if (editorStates.get(elementId) === 'destroyed') {
-            console.warn(`[Milkdown] Element ${elementId} destroyed during crepe bundle loading. Aborting.`);
-            return;
-        }
-
-        // Get Crepe constructor from the global window.milkdownCrepe namespace
-        const Crepe = window.milkdownCrepe?.Crepe;
-        if (!Crepe) {
-            throw new Error("Crepe constructor not found on window.milkdownCrepe");
-        }
-
-        // Initialize the Crepe editor instance with custom ImageBlock upload handler
-        const crepe = new Crepe({
-            root: container,
-            defaultValue: initialMarkdown || "",
-            featureConfigs: {
-                [Crepe.Feature.ImageBlock]: {
-                    onUpload: async (file) => {
-                        try {
-                            const streamRef = DotNet.createJSStreamReference(file);
-                            const url = await dotNetHelper.invokeMethodAsync('UploadImageFromJs', file.name, file.type, streamRef);
-                            return url;
-                        } catch (err) {
-                            console.error("[Milkdown] Failed to upload image from JS (onUpload):", err);
-                            throw err;
-                        }
-                    }
-                }
-            }
-        });
-
-        // Configure custom uploader using the uploadConfig context slice
-        crepe.editor.config((ctx) => {
-            try {
-                ctx.update('uploadConfig', (prev) => ({
-                    ...prev,
-                    uploader: async (files, schema) => {
-                        const nodes = [];
-                        for (let i = 0; i < files.length; i++) {
-                            const file = files[i];
-                            if (file.type.startsWith('image/')) {
-                                try {
-                                    const streamRef = DotNet.createJSStreamReference(file);
-                                    const uploadedUrl = await dotNetHelper.invokeMethodAsync('UploadImageFromJs', file.name, file.type, streamRef);
-                                    if (uploadedUrl) {
-                                        const node = schema.nodes.image.create({ src: uploadedUrl, alt: file.name });
-                                        nodes.push(node);
-                                    }
-                                } catch (err) {
-                                    console.error("[Milkdown] Failed to upload image in custom uploader:", err);
-                                }
-                            }
-                        }
-                        return nodes;
-                    }
-                }));
-            } catch (err) {
-                console.error("[Milkdown] Failed to configure uploadConfig uploader:", err);
-            }
-        });
-
-        // Hook into the Crepe content update listener system with 300ms JS debounce
-        let debounceTimeout = null;
-        crepe.on((listener) => {
-            listener.markdownUpdated((ctx, markdown, prevMarkdown) => {
-                if (debounceTimeout) {
-                    clearTimeout(debounceTimeout);
-                }
-                debounceTimeout = setTimeout(() => {
-                    if (editorStates.get(elementId) === 'destroyed') return;
-                    dotNetHelper.invokeMethodAsync('OnEditorContentChanged', markdown)
-                        .catch(err => console.error("[Milkdown] Failed to notify editor content changed:", err));
-                }, 300);
-            });
-        });
-
-        // Store the editor instance in the map
-        editorCache.set(elementId, crepe);
-
-        // Create the editor view asynchronously
-        await crepe.create();
-
-        if (editorStates.get(elementId) === 'destroyed') {
-            console.warn(`[Milkdown] Element ${elementId} destroyed during crepe.create(). Cleaning up.`);
-            await crepe.destroy();
-            editorCache.delete(elementId);
-            return;
-        }
-
-        editorStates.set(elementId, 'ready');
-        console.log(`[Milkdown] Editor successfully initialized on element: ${elementId}`);
-    } catch (error) {
-        editorStates.delete(elementId);
-        console.error(`[Milkdown] Failed to initialize editor on "${elementId}":`, error);
-    }
-}
-
-/**
- * Retrieves the current Markdown content from a specific editor instance.
- */
-export function getMarkdownContent(elementId) {
-    const crepe = editorCache.get(elementId);
-    if (!crepe) {
-        console.warn(`[Milkdown] No editor instance found for element: ${elementId}`);
-        return "";
-    }
-    return crepe.getMarkdown();
-}
-
-/**
- * Safely disposes of the editor instance to prevent memory leaks in WASM.
- */
-export async function destroyEditor(elementId) {
-    editorStates.set(elementId, 'destroyed');
-
-    const crepe = editorCache.get(elementId);
-    if (crepe) {
-        try {
-            await crepe.destroy();
-            console.log(`[Milkdown] Editor instance successfully destroyed: ${elementId}`);
-        } catch (error) {
-            console.error(`[Milkdown] Error destroying editor for element "${elementId}":`, error);
-        }
-        editorCache.delete(elementId);
-    }
-    
-    // Explicitly clean up container DOM children
-    const container = document.getElementById(elementId);
-    if (container) {
-        container.innerHTML = '';
-    }
-}
-
-/**
- * Safely retrieves all localStorage keys starting with the "nexus-bkp-" prefix.
- */
-export function getBackupKeys() {
-    const keys = [];
-    try {
-        for (let i = 0; i < localStorage.length; i++) {
-            const key = localStorage.key(i);
-            if (key && key.startsWith('nexus-bkp-')) {
-                keys.push(key);
-            }
-        }
-    } catch (err) {
-        console.error("[Milkdown] Error listing localStorage keys:", err);
-    }
-    return keys;
-}
-
-// Attach to window for global access (especially from DisposeAsync when module reference is null)
-if (typeof window !== 'undefined') {
-    window.milkdownWrapper = {
-        initEditor,
-        getMarkdownContent,
-        destroyEditor,
-        getBackupKeys
-    };
-}

src/NexusReader.UI.Shared/wwwroot/js/theme.js

@@ -1,25 +1,14 @@
 window.themeInterop = {
-    isSystemLight: function () {
-        return window.matchMedia && window.matchMedia('(prefers-color-scheme: light)').matches;
-    },
-    setCachedTheme: function (themeClass, modeValue) {
-        localStorage.setItem('theme-mode', modeValue);
-        localStorage.setItem('theme', themeClass === 'theme-light' ? 'light' : 'dark');
-        
-        if (themeClass === 'theme-light') {
-            document.documentElement.classList.add('theme-light');
-            document.documentElement.classList.remove('theme-dark');
-        } else {
-            document.documentElement.classList.add('theme-dark');
-            document.documentElement.classList.remove('theme-light');
-        }
-    },
     isLightMode: function () {
         return document.documentElement.classList.contains('theme-light');
     },
     setLightMode: function (isLight) {
-        var themeClass = isLight ? 'theme-light' : 'theme-dark';
+        if (isLight) {
-        var modeValue = isLight ? '2' : '1';
+            document.documentElement.classList.add('theme-light');
-        this.setCachedTheme(themeClass, modeValue);
+            localStorage.setItem('theme', 'light');
+        } else {
+            document.documentElement.classList.remove('theme-light');
+            localStorage.setItem('theme', 'dark');
+        }
     }
 };

src/NexusReader.Web.Client/Program.cs

@@ -17,8 +17,7 @@ var builder = WebAssemblyHostBuilder.CreateDefault(args);
 // Platform & UI Services
 builder.Services.AddScoped<IPlatformService, WebPlatformService>();
 builder.Services.AddScoped<INativeStorageService, WebStorageService>();
-builder.Services.AddSingleton<IUserPreferenceStore, CloudUserPreferenceStore>();
+builder.Services.AddScoped<IThemeService, ThemeService>();
-builder.Services.AddSingleton<IThemeService, ThemeService>();
 // Feature settings (avoiding direct raw IConfiguration injection in client pages)
 var featureSettings = builder.Configuration.GetSection("Features").Get<FeatureSettings>() ?? new FeatureSettings();
 builder.Services.AddSingleton(featureSettings);
@@ -43,7 +42,6 @@ builder.Services.AddCascadingAuthenticationState();
 // AI & Content Services
 builder.Services.AddScoped<IKnowledgeService, WasmKnowledgeService>();
 builder.Services.AddScoped<IConceptsMapService, WasmConceptsMapService>();
-builder.Services.AddScoped<IRecommendationService, RecommendationService>();
 
 builder.Services.AddTransient<NexusReader.Web.Client.Handlers.AuthenticationHeaderHandler>();
 builder.Services.AddHttpClient("NexusAPI", client => 
@@ -62,10 +60,6 @@ builder.Services.AddSingleton<IQuizResultRepository>(new ThrowingQuizResultRepos
 builder.Services.AddSingleton<IConceptsMapReadRepository>(new ThrowingConceptsMapReadRepository());
 builder.Services.AddSingleton<ISyncBroadcaster>(new ThrowingSyncBroadcaster());
 builder.Services.AddSingleton<IEpubExtractor>(new ThrowingEpubExtractor());
-builder.Services.AddSingleton<IUserLibraryStore>(new ThrowingUserLibraryStore());
-builder.Services.AddSingleton<IVectorSearchStore>(new ThrowingVectorSearchStore());
-builder.Services.Configure<NexusReader.Application.Common.RagMonetizationOptions>(builder.Configuration.GetSection(NexusReader.Application.Common.RagMonetizationOptions.SectionName));
-builder.Services.AddSingleton<IChatClient>(new ThrowingChatClient());
 
 builder.Services.AddApplication();
 builder.Services.AddScoped<IEpubReader, WasmEpubReader>();
@@ -139,37 +133,3 @@ public class ThrowingEpubExtractor : IEpubExtractor
         => throw new NotSupportedException("EPUB text extraction is not supported in the WASM client.");
 }
 
-public class ThrowingUserLibraryStore : IUserLibraryStore
-{
-    public Task<List<Guid>> GetOwnedBookIdsAsync(string userId, CancellationToken cancellationToken = default)
-        => throw new NotSupportedException("UserLibrary operations are not supported in the WASM client.");
-
-    public Task<Dictionary<Guid, string>> GetBookTitlesAsync(List<Guid> bookIds, CancellationToken cancellationToken = default)
-        => throw new NotSupportedException("UserLibrary operations are not supported in the WASM client.");
-}
-
-public class ThrowingVectorSearchStore : IVectorSearchStore
-{
-    public Task<List<VectorChunk>> SearchGlobalAsync(string queryText, string tenantId, int limit, CancellationToken cancellationToken = default)
-        => throw new NotSupportedException("VectorSearch operations are not supported in the WASM client.");
-
-    public Task<List<VectorChunk>> SearchLocalAsync(string queryText, string tenantId, List<Guid> whitelistedBookIds, int limit, CancellationToken cancellationToken = default)
-        => throw new NotSupportedException("VectorSearch operations are not supported in the WASM client.");
-
-    public Task<List<VectorChunk>> SearchGlobalExcludeAsync(string queryText, string tenantId, Guid excludeBookId, int limit, CancellationToken cancellationToken = default)
-        => throw new NotSupportedException("VectorSearch operations are not supported in the WASM client.");
-}
-
-public class ThrowingChatClient : IChatClient
-{
-    public void Dispose() { }
-
-    public Task<ChatResponse> GetResponseAsync(IEnumerable<ChatMessage> chatMessages, ChatOptions? options = null, CancellationToken cancellationToken = default)
-        => throw new NotSupportedException("Chat operations are not supported in the WASM client.");
-
-    public IAsyncEnumerable<ChatResponseUpdate> GetStreamingResponseAsync(IEnumerable<ChatMessage> chatMessages, ChatOptions? options = null, CancellationToken cancellationToken = default)
-        => throw new NotSupportedException("Chat operations are not supported in the WASM client.");
-
-    public object? GetService(Type serviceType, object? serviceKey = null) => null;
-}
-

src/NexusReader.Web.Client/Services/CloudUserPreferenceStore.cs

@@ -1,61 +0,0 @@
-using System.Net.Http;
-using System.Net.Http.Json;
-using FluentResults;
-using NexusReader.Application.DTOs.User;
-using NexusReader.Domain.Enums;
-using NexusReader.Application.Abstractions.Services;
-
-namespace NexusReader.Web.Client.Services;
-
-public class CloudUserPreferenceStore : IUserPreferenceStore
-{
-    private readonly IHttpClientFactory _httpClientFactory;
-
-    public CloudUserPreferenceStore(IHttpClientFactory httpClientFactory)
-    {
-        _httpClientFactory = httpClientFactory;
-    }
-
-    private HttpClient CreateClient() => _httpClientFactory.CreateClient("NexusAPI");
-
-    public async Task<Result> SaveThemePreferenceAsync(ThemeMode mode)
-    {
-        try
-        {
-            var client = CreateClient();
-            var response = await client.PostAsJsonAsync("identity/theme", new UpdateThemeRequest(mode));
-            if (response.IsSuccessStatusCode)
-            {
-                return Result.Ok();
-            }
-            
-            var error = await response.Content.ReadAsStringAsync();
-            return Result.Fail($"Failed to save cloud theme preference: {error}");
-        }
-        catch (Exception ex)
-        {
-            return Result.Fail(new Error("Network error saving theme preference to cloud.").CausedBy(ex));
-        }
-    }
-
-    public async Task<Result<ThemeMode>> GetThemePreferenceAsync()
-    {
-        try
-        {
-            var client = CreateClient();
-            var response = await client.GetAsync("identity/profile");
-            if (response.IsSuccessStatusCode)
-            {
-                var profile = await response.Content.ReadFromJsonAsync<UserProfileDto>();
-                return profile != null 
-                    ? Result.Ok(profile.ThemePreference) 
-                    : Result.Fail("Failed to deserialize profile response.");
-            }
-            return Result.Fail($"Failed to fetch theme preference from cloud: {response.ReasonPhrase}");
-        }
-        catch (Exception ex)
-        {
-            return Result.Fail(new Error("Network error retrieving theme preference from cloud.").CausedBy(ex));
-        }
-    }
-}

src/NexusReader.Web.Client/Services/RecommendationService.cs

@@ -1,74 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Net;
-using System.Net.Http;
-using System.Net.Http.Json;
-using System.Text.Json;
-using System.Text.Json.Serialization.Metadata;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.Logging;
-using NexusReader.Application.Common;
-using NexusReader.Application.Queries.Recommendations;
-using NexusReader.UI.Shared.Services;
-
-namespace NexusReader.Web.Client.Services;
-
-/// <summary>
-/// WASM implementation of <see cref="IRecommendationService"/> that fetches contextual recommendations
-/// from the <c>/api/recommendations</c> server endpoint via a named <c>NexusAPI</c> HTTP client.
-/// </summary>
-internal sealed class RecommendationService : IRecommendationService
-{
-    private readonly HttpClient _http;
-    private readonly ILogger<RecommendationService> _logger;
-
-    /// <summary>
-    /// Initializes a new instance of <see cref="RecommendationService"/>.
-    /// </summary>
-    public RecommendationService(HttpClient http, ILogger<RecommendationService> logger)
-    {
-        _http = http;
-        _logger = logger;
-    }
-
-    /// <inheritdoc />
-    public async Task<List<RecommendationDto>?> GetRecommendationsAsync(CancellationToken cancellationToken = default)
-    {
-        try
-        {
-            var response = await _http.GetAsync("/api/recommendations", cancellationToken);
-
-            if (response.StatusCode == HttpStatusCode.NoContent || response.StatusCode == HttpStatusCode.NotFound)
-            {
-                _logger.LogInformation("[RecommendationService] No recommendations available (status {StatusCode}).", response.StatusCode);
-                return new List<RecommendationDto>();
-            }
-
-            response.EnsureSuccessStatusCode();
-
-            var result = await response.Content.ReadFromJsonAsync(
-                AppJsonContext.Default.ContextualRecommendationResponse,
-                cancellationToken);
-
-            if (result is null)
-            {
-                _logger.LogWarning("[RecommendationService] Deserialised response was null.");
-                return new List<RecommendationDto>();
-            }
-
-            _logger.LogInformation("[RecommendationService] Received {Count} recommendations.", result.Recommendations.Count);
-            return result.Recommendations;
-        }
-        catch (HttpRequestException httpEx)
-        {
-            _logger.LogError(httpEx, "[RecommendationService] HTTP error fetching recommendations: {Message}", httpEx.Message);
-            return null;
-        }
-        catch (Exception ex)
-        {
-            _logger.LogError(ex, "[RecommendationService] Unexpected error fetching recommendations.");
-            return null;
-        }
-    }
-}

src/NexusReader.Web/Components/App.razor

@@ -11,29 +11,14 @@
 
     <script>
         (function () {
-            try {
+            const savedTheme = localStorage.getItem('theme');
-                var themeMode = localStorage.getItem('theme-mode');
+            const systemPrefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
-                var savedTheme = localStorage.getItem('theme');
+            const isLight = savedTheme === 'light' || (!savedTheme && !systemPrefersDark);
-                var isLight = false;
-                
-                if (themeMode === '2' || savedTheme === 'light') {
-                    isLight = true;
-                } else if (themeMode === '1' || savedTheme === 'dark') {
-                    isLight = false;
-                } else {
-                    isLight = window.matchMedia && window.matchMedia('(prefers-color-scheme: light)').matches;
-                }
-                
             if (isLight) {
                 document.documentElement.classList.add('theme-light');
-                    document.documentElement.classList.remove('theme-dark');
             } else {
-                    document.documentElement.classList.add('theme-dark');
                 document.documentElement.classList.remove('theme-light');
             }
-            } catch (e) {
-                // Fail silently
-            }
         })();
     </script>
 

src/NexusReader.Web/Program.cs

@@ -52,9 +52,7 @@ builder.Services.AddHttpContextAccessor();
 
 builder.Services.AddScoped<IPlatformService, WebPlatformService>();
 builder.Services.AddScoped<INativeStorageService, NexusReader.Web.Services.NativeStorageService>();
-builder.Services.AddScoped<IUserPreferenceStore, NexusReader.Web.Services.ServerUserPreferenceStore>();
+builder.Services.AddScoped<IThemeService, ThemeService>();
-builder.Services.AddScoped<IThemeService, NexusReader.Web.Services.ServerThemeService>();
-builder.Services.AddScoped<IRecommendationService, NexusReader.Web.Services.ServerRecommendationService>();
 // Feature settings (avoiding direct raw IConfiguration injection in client pages)
 var featureSettings = builder.Configuration.GetSection("Features").Get<FeatureSettings>() ?? new FeatureSettings();
 builder.Services.AddSingleton(featureSettings);
@@ -91,10 +89,6 @@ builder.Services.AddCascadingAuthenticationState();
 
 builder.Services.AddApplication();
 builder.Services.AddInfrastructure(builder.Configuration);
-builder.Services.AddHealthChecks()
-    .AddCheck<NexusReader.Web.Services.DatabaseHealthCheck>("Database")
-    .AddCheck<NexusReader.Web.Services.QdrantHealthCheck>("Qdrant")
-    .AddCheck<NexusReader.Web.Services.Neo4jHealthCheck>("Neo4j");
 
 builder.Services.AddMediatR(cfg => cfg.RegisterServicesFromAssemblies(
     NexusReader.Application.DependencyInjection.Assembly,
@@ -299,7 +293,6 @@ if (!allowRegistration || !allowPasswordReset)
 }
 
 app.MapStaticAssets();
-app.MapHealthChecks("/health");
 app.MapHub<NexusReader.Infrastructure.RealTime.SyncHub>("/synchub");
 
 // API endpoint for WASM client to fetch EPUB content
@@ -498,132 +491,6 @@ app.MapGet("/api/library/books", async (ClaimsPrincipal user, IMediator mediator
     return Results.BadRequest(errorMsg);
 }).RequireAuthorization();
 
-app.MapGet("/api/creator/dashboard", async (ClaimsPrincipal user, IMediator mediator) =>
-{
-    var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
-    if (string.IsNullOrEmpty(userId)) return Results.Unauthorized();
-
-    var tenantId = user.FindFirstValue("TenantId") ?? "global";
-
-    var result = await mediator.Send(new NexusReader.Application.Queries.Creator.GetCreatorDashboardDataQuery(userId, tenantId));
-    if (result.IsSuccess) return Results.Ok(result.Value);
-
-    var errorMsg = result.Errors.Count > 0 ? result.Errors[0].Message : "Unknown server error";
-    return Results.BadRequest(errorMsg);
-}).RequireAuthorization();
-
-app.MapGet("/api/creator/books/{bookId:guid}/revisions", async (Guid bookId, ClaimsPrincipal user, IMediator mediator) =>
-{
-    var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
-    if (string.IsNullOrEmpty(userId)) return Results.Unauthorized();
-
-    var tenantId = user.FindFirstValue("TenantId") ?? "global";
-
-    var result = await mediator.Send(new NexusReader.Application.Queries.Creator.GetBookRevisionsQuery(bookId, userId, tenantId));
-    if (result.IsSuccess) return Results.Ok(result.Value);
-
-    var errorMsg = result.Errors.Count > 0 ? result.Errors[0].Message : "Unknown server error";
-    if (errorMsg.Contains("was not found", StringComparison.OrdinalIgnoreCase))
-    {
-        return Results.NotFound(errorMsg);
-    }
-    return Results.BadRequest(errorMsg);
-}).RequireAuthorization();
-
-app.MapPost("/api/creator/books/{bookId:guid}/publish", async (Guid bookId, [FromQuery] string version, ClaimsPrincipal user, IMediator mediator) =>
-{
-    var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
-    if (string.IsNullOrEmpty(userId)) return Results.Unauthorized();
-
-    var tenantId = user.FindFirstValue("TenantId") ?? "global";
-
-    if (string.IsNullOrWhiteSpace(version))
-    {
-        return Results.BadRequest("Version string is required.");
-    }
-
-    var result = await mediator.Send(new NexusReader.Application.Features.Books.Commands.PublishBookVersionCommand(bookId, version, userId, tenantId));
-    if (result.IsSuccess) return Results.Ok();
-
-    var errorMsg = result.Errors.Count > 0 ? result.Errors[0].Message : "Unknown server error";
-    if (errorMsg.Contains("was not found", StringComparison.OrdinalIgnoreCase))
-    {
-        return Results.NotFound(errorMsg);
-    }
-    return Results.BadRequest(errorMsg);
-}).RequireAuthorization();
-
-app.MapPost("/api/creator/books", async (
-    [FromBody] NexusReader.Application.DTOs.Creator.CreateBookRequestDto request,
-    ClaimsPrincipal user,
-    IMediator mediator) =>
-{
-    var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
-    if (string.IsNullOrEmpty(userId)) return Results.Unauthorized();
-
-    var tenantId = user.FindFirstValue("TenantId") ?? "global";
-
-    var result = await mediator.Send(new NexusReader.Application.Features.Books.Commands.CreateBookCommand(
-        request.Title,
-        request.Description,
-        userId,
-        tenantId
-    ));
-
-    if (result.IsSuccess)
-    {
-        return Results.Ok(new NexusReader.Application.DTOs.Creator.CreateBookResponseDto(result.Value));
-    }
-
-    var errorMsg = result.Errors.Count > 0 ? result.Errors[0].Message : "Unknown server error";
-    return Results.BadRequest(errorMsg);
-}).RequireAuthorization();
-
-app.MapGet("/api/creator/books/{bookId:guid}/chapters", async (Guid bookId, ClaimsPrincipal user, IDbContextFactory<AppDbContext> dbContextFactory) =>
-{
-    var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
-    if (string.IsNullOrEmpty(userId)) return Results.Unauthorized();
-
-    using var dbContext = await dbContextFactory.CreateDbContextAsync();
-    var book = await dbContext.Books
-        .Include(b => b.CurrentDraftRevision)
-            .ThenInclude(r => r!.Chapters)
-        .FirstOrDefaultAsync(b => b.Id == bookId && b.UserId == userId);
-
-    if (book == null) return Results.NotFound();
-    if (book.CurrentDraftRevision == null) return Results.BadRequest("No active draft revision.");
-
-    var chapters = book.CurrentDraftRevision.Chapters
-        .OrderBy(c => c.SortOrder)
-        .Select(c => new { c.Id, c.Title, c.SortOrder })
-        .ToList();
-
-    return Results.Ok(chapters);
-}).RequireAuthorization();
-
-app.MapGet("/api/chapters/{id:guid}", async (Guid id, ClaimsPrincipal user, IDbContextFactory<AppDbContext> dbContextFactory) =>
-{
-    var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
-    if (string.IsNullOrEmpty(userId)) return Results.Unauthorized();
-
-    using var dbContext = await dbContextFactory.CreateDbContextAsync();
-    
-    var chapter = await dbContext.Chapters
-        .Include(c => c.BookRevision)
-            .ThenInclude(r => r.Book)
-        .FirstOrDefaultAsync(c => c.Id == id);
-
-    if (chapter == null) return Results.NotFound();
-
-    // Verify ownership
-    if (chapter.BookRevision.Book.UserId != userId)
-    {
-        return Results.Forbid();
-    }
-
-    return Results.Ok(new { chapter.Id, chapter.Title, chapter.MarkdownContent });
-}).RequireAuthorization();
-
 app.MapPost("/api/library/purchase", async (
     ClaimsPrincipal user,
     [FromBody] PurchaseBookRequest request,
@@ -886,99 +753,6 @@ app.MapGet("/identity/profile", async (ClaimsPrincipal user, IMediator mediator)
     return Results.Ok(result.Value);
 }).RequireAuthorization();
 
-app.MapPost("/identity/theme", async (
-    [Microsoft.AspNetCore.Mvc.FromBody] NexusReader.Application.DTOs.User.UpdateThemeRequest request,
-    ClaimsPrincipal user,
-    IMediator mediator) =>
-{
-    var userId = user.FindFirstValue(ClaimTypes.NameIdentifier);
-    if (string.IsNullOrEmpty(userId)) return Results.Unauthorized();
-
-    var result = await mediator.Send(new NexusReader.Application.Commands.User.UpdateThemeCommand(userId, request.Mode));
-    if (result.IsFailed) return Results.BadRequest(result.Errors.FirstOrDefault()?.Message);
-
-    return Results.Ok();
-}).RequireAuthorization();
-
-app.MapPost("/api/media/upload", async (
-    HttpRequest request,
-    NexusReader.Application.Abstractions.Services.IStorageService storageService,
-    ILogger<Program> logger) =>
-{
-    if (!request.HasFormContentType)
-    {
-        return Results.BadRequest("Request must be a multipart form.");
-    }
-
-    var form = await request.ReadFormAsync();
-    var file = form.Files.GetFile("file");
-
-    if (file == null || file.Length == 0)
-    {
-        return Results.BadRequest("No file uploaded.");
-    }
-
-    // Size limit check (max 5MB)
-    const long maxFileSize = 5 * 1024 * 1024;
-    if (file.Length > maxFileSize)
-    {
-        return Results.BadRequest("File size exceeds the 5MB limit.");
-    }
-
-    // Read file bytes for signature check
-    byte[] fileBytes;
-    using (var memoryStream = new MemoryStream())
-    {
-        await file.CopyToAsync(memoryStream);
-        fileBytes = memoryStream.ToArray();
-    }
-
-    // Validate signature without trusting browser content-type, enforcing extension matching
-    if (!ImageValidator.ValidateImageSignature(fileBytes, file.FileName, out var detectedContentType))
-    {
-        logger.LogWarning("File signature validation failed for file {FileName} with browser content type {ContentType}.", file.FileName, file.ContentType);
-        return Results.BadRequest("Invalid file signature or extension mismatch. Legitimate JPEG, PNG, WEBP, or GIF images only.");
-    }
-
-    // Save using IStorageService with the verified content type
-    var fileUrl = await storageService.UploadFileAsync(fileBytes, file.FileName, detectedContentType);
-    return Results.Ok(new NexusReader.Application.DTOs.Media.UploadResultDto(fileUrl));
-}).DisableAntiforgery();
-
-app.MapPost("/api/chapters/validate", (
-    [Microsoft.AspNetCore.Mvc.FromBody] NexusReader.Application.DTOs.Media.ValidateChapterRequest request,
-    NexusReader.Application.Abstractions.Services.ISanitizerService sanitizerService) =>
-{
-    if (request == null || string.IsNullOrEmpty(request.Content))
-    {
-        return Results.Ok(new NexusReader.Application.DTOs.Media.ValidateChapterResponse(string.Empty));
-    }
-
-    var sanitized = sanitizerService.Sanitize(request.Content);
-    return Results.Ok(new NexusReader.Application.DTOs.Media.ValidateChapterResponse(sanitized));
-}).DisableAntiforgery();
-
-app.MapPut("/api/chapters/{id:guid}/autosave", async (
-    Guid id,
-    [Microsoft.AspNetCore.Mvc.FromBody] NexusReader.Application.DTOs.Media.AutosaveChapterRequest request,
-    IDbContextFactory<AppDbContext> dbContextFactory,
-    ILoggerFactory loggerFactory) =>
-{
-    var logger = loggerFactory.CreateLogger("ChaptersApi");
-    logger.LogInformation("Autosaving chapter {ChapterId} with content length {Length}", id, request?.MarkdownContent?.Length ?? 0);
-
-    if (request == null) return Results.BadRequest("Request content cannot be null.");
-
-    using var dbContext = await dbContextFactory.CreateDbContextAsync();
-    var chapter = await dbContext.Chapters.FindAsync(id);
-    if (chapter == null) return Results.NotFound($"Chapter with ID '{id}' was not found.");
-
-    chapter.MarkdownContent = request.MarkdownContent;
-    await dbContext.SaveChangesAsync();
-
-    return Results.Ok(new { Success = true });
-}).DisableAntiforgery();
-
 app.MapRazorComponents<App>()
     .AddInteractiveServerRenderMode()
     .AddInteractiveWebAssemblyRenderMode()
@@ -1030,58 +804,6 @@ async Task TriggerBackgroundProcessingForUnindexedBooksAsync(IServiceProvider se
     }
 }
 
-public static class ImageValidator
-{
-    public static bool ValidateImageSignature(byte[] bytes, string fileName, out string detectedContentType)
-    {
-        detectedContentType = string.Empty;
-        if (bytes.Length < 4) return false;
-
-        // Check PNG signature: 89 50 4E 47
-        if (bytes[0] == 0x89 && bytes[1] == 0x50 && bytes[2] == 0x4E && bytes[3] == 0x47)
-        {
-            detectedContentType = "image/png";
-        }
-        // Check JPEG signature: FF D8 FF
-        else if (bytes[0] == 0xFF && bytes[1] == 0xD8 && bytes[2] == 0xFF)
-        {
-            detectedContentType = "image/jpeg";
-        }
-        // Check WEBP signature: RIFF ... WEBP
-        else if (bytes.Length >= 12 &&
-                 bytes[0] == 0x52 && bytes[1] == 0x49 && bytes[2] == 0x46 && bytes[3] == 0x46 && // RIFF
-                 bytes[8] == 0x57 && bytes[9] == 0x45 && bytes[10] == 0x42 && bytes[11] == 0x50) // WEBP
-        {
-            detectedContentType = "image/webp";
-        }
-        // Check GIF signature: GIF87a or GIF89a
-        else if (bytes.Length >= 6 &&
-                 bytes[0] == 0x47 && bytes[1] == 0x49 && bytes[2] == 0x46 && bytes[3] == 0x38 &&
-                 (bytes[4] == 0x37 || bytes[4] == 0x39) && bytes[5] == 0x61)
-        {
-            detectedContentType = "image/gif";
-        }
-
-        if (string.IsNullOrEmpty(detectedContentType))
-        {
-            return false;
-        }
-
-        // Verify that the file extension matches the detected content type (extension-spoofing guard)
-        var ext = Path.GetExtension(fileName).ToLowerInvariant();
-        var isMatch = detectedContentType switch
-        {
-            "image/png" => ext == ".png",
-            "image/jpeg" => ext == ".jpg" || ext == ".jpeg",
-            "image/webp" => ext == ".webp",
-            "image/gif" => ext == ".gif",
-            _ => false
-        };
-
-        return isMatch;
-    }
-}
-
 public record KnowledgeRequest(string Text, Guid? EbookId = null);
 public record GroundednessRequest(string Answer, string Context);
 public record SemanticSearchRequest(string QueryText, int Limit = 5);

src/NexusReader.Web/Services/DatabaseHealthCheck.cs

@@ -1,35 +0,0 @@
-using Microsoft.Extensions.Diagnostics.HealthChecks;
-using NexusReader.Data.Persistence;
-using System;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace NexusReader.Web.Services;
-
-public class DatabaseHealthCheck : IHealthCheck
-{
-    private readonly AppDbContext _dbContext;
-
-    public DatabaseHealthCheck(AppDbContext dbContext)
-    {
-        _dbContext = dbContext;
-    }
-
-    public async Task<HealthCheckResult> CheckHealthAsync(
-        HealthCheckContext context, CancellationToken cancellationToken = default)
-    {
-        try
-        {
-            var canConnect = await _dbContext.Database.CanConnectAsync(cancellationToken);
-            if (canConnect)
-            {
-                return HealthCheckResult.Healthy("Database is accessible.");
-            }
-            return HealthCheckResult.Unhealthy("Cannot connect to the database.");
-        }
-        catch (Exception ex)
-        {
-            return HealthCheckResult.Unhealthy("Database health check failed with exception.", ex);
-        }
-    }
-}

src/NexusReader.Web/Services/Neo4jHealthCheck.cs

@@ -1,31 +0,0 @@
-using Microsoft.Extensions.Diagnostics.HealthChecks;
-using Neo4j.Driver;
-using System;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace NexusReader.Web.Services;
-
-public class Neo4jHealthCheck : IHealthCheck
-{
-    private readonly IDriver _driver;
-
-    public Neo4jHealthCheck(IDriver driver)
-    {
-        _driver = driver;
-    }
-
-    public async Task<HealthCheckResult> CheckHealthAsync(
-        HealthCheckContext context, CancellationToken cancellationToken = default)
-    {
-        try
-        {
-            await _driver.VerifyConnectivityAsync();
-            return HealthCheckResult.Healthy("Neo4j database is accessible.");
-        }
-        catch (Exception ex)
-        {
-            return HealthCheckResult.Unhealthy("Neo4j database connectivity check failed.", ex);
-        }
-    }
-}

src/NexusReader.Web/Services/QdrantHealthCheck.cs

@@ -1,32 +0,0 @@
-using Microsoft.Extensions.Diagnostics.HealthChecks;
-using Qdrant.Client;
-using System;
-using System.Threading;
-using System.Threading.Tasks;
-
-namespace NexusReader.Web.Services;
-
-public class QdrantHealthCheck : IHealthCheck
-{
-    private readonly QdrantClient _qdrantClient;
-
-    public QdrantHealthCheck(QdrantClient qdrantClient)
-    {
-        _qdrantClient = qdrantClient;
-    }
-
-    public async Task<HealthCheckResult> CheckHealthAsync(
-        HealthCheckContext context, CancellationToken cancellationToken = default)
-    {
-        try
-        {
-            // Simple check: query collection existence to verify connection is alive
-            _ = await _qdrantClient.CollectionExistsAsync("knowledge_units", cancellationToken);
-            return HealthCheckResult.Healthy("Qdrant database is accessible.");
-        }
-        catch (Exception ex)
-        {
-            return HealthCheckResult.Unhealthy("Qdrant database health check failed.", ex);
-        }
-    }
-}