feat(infra): configure beta deployment to Test environment with hardened security and feature flags

src/NexusReader.Data/Persistence/DbInitializer.cs

@@ -68,7 +68,8 @@ public static class DbInitializer
                     SecurityStamp = Guid.NewGuid().ToString()
                 };
 
-                adminUser.PasswordHash = passwordHasher.HashPassword(adminUser, "Admin123!");
+                var adminPassword = Environment.GetEnvironmentVariable("NEXUS_ADMIN_PASSWORD") ?? "Admin123!";
+                adminUser.PasswordHash = passwordHasher.HashPassword(adminUser, adminPassword);
 
                 dbContext.Users.Add(adminUser);
                 await dbContext.SaveChangesAsync();

src/NexusReader.Infrastructure/DependencyInjection.cs

@@ -56,9 +56,14 @@ public static class DependencyInjection
         var qdrantUrl = configuration.GetConnectionString("QdrantConnection") ?? "http://localhost:6334";
         services.AddSingleton<QdrantClient>(sp => new QdrantClient(new Uri(qdrantUrl)));
 
-        // Neo4j Driver registration
+        // Neo4j Driver registration (supports optional authentication)
         var neo4jUrl = configuration.GetConnectionString("Neo4jConnection") ?? "bolt://localhost:7687";
-        services.AddSingleton<IDriver>(sp => GraphDatabase.Driver(neo4jUrl, AuthTokens.None));
+        var neo4jUser = configuration["Neo4j:Username"];
+        var neo4jPass = configuration["Neo4j:Password"];
+        var neo4jAuth = !string.IsNullOrEmpty(neo4jUser)
+            ? AuthTokens.Basic(neo4jUser, neo4jPass ?? string.Empty)
+            : AuthTokens.None;
+        services.AddSingleton<IDriver>(sp => GraphDatabase.Driver(neo4jUrl, neo4jAuth));
 
         // Hangfire registration
         if (!string.IsNullOrEmpty(pgConnectionString))

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

@@ -7,6 +7,7 @@
 @inject IIdentityService IdentityService
 @inject NavigationManager NavigationManager
 @inject IJSRuntime JS
+@inject IConfiguration Configuration
 
 <div class="login-page-container">
     <div class="mesh-bg"></div>
@@ -80,8 +81,14 @@
         </EditForm>
 
         <div class="auth-footer">
-            <a href="/account/forgot-password" class="auth-link">Zapomniałem hasła?</a>
-            <p class="auth-switch">Nie masz konta? <a href="/account/register">Zarejestruj się</a></p>
+            @if (_allowPasswordReset)
+            {
+                <a href="/account/forgot-password" class="auth-link">Zapomniałem hasła?</a>
+            }
+            @if (_allowRegistration)
+            {
+                <p class="auth-switch">Nie masz konta? <a href="/account/register">Zarejestruj się</a></p>
+            }
         </div>
 
         <div class="auth-legal">
@@ -106,9 +113,14 @@
     private string? _errorMessage;
     private bool _isSubmitting;
     private bool _showPassword;
+    private bool _allowRegistration;
+    private bool _allowPasswordReset;
 
     protected override void OnInitialized()
     {
+        _allowRegistration = Configuration.GetValue<bool?>("Features:AllowRegistration") ?? true;
+        _allowPasswordReset = Configuration.GetValue<bool?>("Features:AllowPasswordReset") ?? true;
+
         if (!string.IsNullOrEmpty(ErrorCode))
         {
             _errorMessage = ErrorCode switch
@@ -118,6 +130,7 @@
                 "UserAlreadyExists" => "Użytkownik o tym adresie e-mail już istnieje. Zaloguj się tradycyjnie hasłem.",
                 "LockedOut" => "Twoje konto zostało zablokowane. Spróbuj ponownie później.",
                 "InvalidCredentials" => "Nieprawidłowy e-mail lub hasło.",
+                "RegistrationDisabled" => "Rejestracja jest wyłączona w tym środowisku.",
                 _ => "Wystąpił nieoczekiwany błąd podczas logowania."
             };
         }

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

@@ -7,6 +7,7 @@
 @inject IIdentityService IdentityService
 @inject NavigationManager NavigationManager
 @inject IJSRuntime JS
+@inject IConfiguration Configuration
 
 <div class="login-page-container">
     <div class="mesh-bg"></div>
@@ -81,6 +82,15 @@
     private string? _errorMessage;
     private bool _isSubmitting;
 
+    protected override void OnInitialized()
+    {
+        var allowRegistration = Configuration.GetValue<bool?>("Features:AllowRegistration") ?? true;
+        if (!allowRegistration)
+        {
+            NavigationManager.NavigateTo("/account/login?error=RegistrationDisabled", replace: true);
+        }
+    }
+
     private async Task HandleRegister()
     {
         _isSubmitting = true;

src/NexusReader.UI.Shared/_Imports.razor

@@ -16,6 +16,7 @@
 @using NexusReader.UI.Shared.Components.Organisms
 @using NexusReader.UI.Shared.Services
 @using Microsoft.Extensions.Logging
+@using Microsoft.Extensions.Configuration
 @using NexusReader.Application.Abstractions.Services
 @using NexusReader.Application.DTOs.User
 @using NexusReader.Application.Queries.Reader

src/NexusReader.Web/Program.cs

@@ -252,6 +252,35 @@ app.UseRouting();
 app.UseAuthentication();
 app.UseAuthorization();
 app.UseAntiforgery();
+
+// Feature flags: block registration & password reset in restricted environments (e.g. Test)
+var allowRegistration = app.Configuration.GetValue<bool?>("Features:AllowRegistration") ?? true;
+var allowPasswordReset = app.Configuration.GetValue<bool?>("Features:AllowPasswordReset") ?? true;
+
+if (!allowRegistration || !allowPasswordReset)
+{
+    app.Use(async (context, next) =>
+    {
+        var path = context.Request.Path.Value?.ToLowerInvariant();
+
+        if (!allowRegistration && path is "/identity/register" or "/account/register")
+        {
+            context.Response.StatusCode = StatusCodes.Status403Forbidden;
+            await context.Response.WriteAsync("Registration is disabled in this environment.");
+            return;
+        }
+
+        if (!allowPasswordReset && path is "/identity/forgotpassword" or "/account/forgot-password")
+        {
+            context.Response.StatusCode = StatusCodes.Status403Forbidden;
+            await context.Response.WriteAsync("Password reset is disabled in this environment.");
+            return;
+        }
+
+        await next();
+    });
+}
+
 app.MapStaticAssets();
 app.MapHub<NexusReader.Infrastructure.RealTime.SyncHub>("/synchub");
 
@@ -520,7 +549,13 @@ app.MapGet("/identity/callback/google", async (
         return Results.Redirect("/account/login?error=LockedOut");
     }
 
-    // New user provisioning
+    // New user provisioning (blocked when registration is disabled)
+    if (!allowRegistration)
+    {
+        logger.LogWarning("Google provisioning blocked: registration is disabled in this environment.");
+        return Results.Redirect("/account/login?error=RegistrationDisabled");
+    }
+
     var email = info.Principal.FindFirstValue(ClaimTypes.Email);
     if (email != null)
     {

src/NexusReader.Web/appsettings.Test.json

@@ -0,0 +1,13 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "Features": {
+    "AllowRegistration": false,
+    "AllowPasswordReset": false
+  },
+  "ApiBaseUrl": "http://localhost:5000"
+}