feat: implement real-time reading progress and refactor profile to CQRS

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

@@ -118,8 +118,18 @@
     {
         await Coordinator.OnBlockReachedAsync(blockId, content);
         
-        // Debounce sync update (simple version: every 5 seconds or on a timer)
-        await SyncService.UpdateProgressAsync(blockId);
+        if (ViewModel != null)
+        {
+            // Calculate progress: (CurrentChapter / TotalChapters) * 100 
+            // Simple approximation for now: chapter-based
+            double progress = ((double)(ViewModel.CurrentChapterIndex + 1) / ViewModel.TotalChapters) * 100;
+            
+            await SyncService.UpdateProgressAsync(
+                blockId, 
+                ViewModel.EbookId, 
+                progress, 
+                ViewModel.ChapterTitle);
+        }
     }
 
     private async Task HandleSyncProgressReceived(string blockId, DateTime timestamp)

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

@@ -5,7 +5,7 @@ namespace NexusReader.UI.Shared.Services;
 public interface ISyncService
 {
     Task<Result> InitializeAsync();
-    Task<Result> UpdateProgressAsync(string pageId);
+    Task<Result> UpdateProgressAsync(string pageId, Guid ebookId, double progress, string? chapterTitle);
     event Func<string, DateTime, Task> OnProgressReceived;
     Task DisposeAsync();
 }

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

@@ -46,6 +46,7 @@ public class SyncService : ISyncService, IAsyncDisposable
 
         _hubConnection.On<string, DateTime>("ProgressUpdated", async (pageId, timestamp) =>
         {
+            // Note: In the future we might want to receive ebookId and progress here too
             if (OnProgressReceived != null) await OnProgressReceived(pageId, timestamp);
         });
 
@@ -63,7 +64,7 @@ public class SyncService : ISyncService, IAsyncDisposable
 
     private string? _lastSentPageId;
 
-    public async Task<Result> UpdateProgressAsync(string pageId)
+    public async Task<Result> UpdateProgressAsync(string pageId, Guid ebookId, double progress, string? chapterTitle)
     {
         if (pageId == _lastSentPageId) return Result.Ok();
         
@@ -82,7 +83,7 @@ public class SyncService : ISyncService, IAsyncDisposable
                 
                 if (_hubConnection?.State == HubConnectionState.Connected)
                 {
-                    await _hubConnection.SendAsync("UpdateProgress", pageId, token);
+                    await _hubConnection.SendAsync("UpdateProgress", pageId, ebookId, progress, chapterTitle, token);
                     _lastSentPageId = pageId;
                 }
             }