feat: integrate AI-driven selection panel with context-aware text summarization and quiz generation features.

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

@@ -7,13 +7,17 @@
 @inject IJSRuntime JS
 @inject IFocusModeService FocusMode
 @inject IKnowledgeGraphService GraphService
+@inject IReaderInteractionService InteractionService
 
 <div class="knowledge-graph-container" id="@ContainerId">
-    @if (GraphData == null)
+    @if (GraphService.IsLoading || GraphService.CurrentGraphData == null)
     {
         <div class="loading-state">
-            <NexusIcon Name="robot" Size="48" Class="neon-glow" />
-            <NexusTypography>Analyzing Chapter Nodes...</NexusTypography>
+            <div class="preloader-robot">
+                <NexusIcon Name="robot" Size="64" Class="neon-pulse" />
+                <div class="scan-line"></div>
+            </div>
+            <NexusTypography Variant="NexusTypography.TypographyVariant.UI">Mapowanie relacji rozdziału...</NexusTypography>
         </div>
     }
     else
@@ -31,7 +35,6 @@
     [Parameter] public EventCallback<string> OnNodeSelected { get; set; }
 
     private string ContainerId = "d3-graph-container";
-    private GraphDataDto? GraphData;
     private IJSObjectReference? _module;
     private DotNetObjectReference<KnowledgeGraph>? _dotNetHelper;
 
@@ -40,12 +43,22 @@
         FocusMode.OnFocusModeChanged += HandleFocusSimulation;
         GraphService.OnGraphUpdated += HandleGraphUpdate;
         GraphService.OnActiveNodeChanged += HandleActiveNodeChange;
+        GraphService.OnLoadingChanged += HandleLoadingChange;
     }
 
     private async void HandleGraphUpdate()
     {
         if (_module == null) return;
-        await _module.InvokeVoidAsync("updateData", GraphService.CurrentGraphData);
+        
+        if (GraphService.CurrentGraphData == null)
+        {
+            await _module.InvokeVoidAsync("clear");
+        }
+        else
+        {
+            await _module.InvokeVoidAsync("updateData", GraphService.CurrentGraphData);
+        }
+        
         await InvokeAsync(StateHasChanged);
     }
 
@@ -55,16 +68,20 @@
         await _module.InvokeVoidAsync("setActiveNode", nodeId);
     }
 
+    private async void HandleLoadingChange(bool isLoading)
+    {
+        await InvokeAsync(StateHasChanged);
+    }
+
     protected override async Task OnAfterRenderAsync(bool firstRender)
     {
         if (firstRender)
         {
-            var result = await Mediator.Send(new GetKnowledgeGraphQuery());
-            if (result.IsSuccess)
+            await InitializeGraphAsync();
+            
+            if (GraphService.CurrentGraphData != null)
             {
-                GraphData = result.Value;
-                StateHasChanged();
-                await InitializeGraphAsync();
+                HandleGraphUpdate();
             }
         }
     }
@@ -73,7 +90,7 @@
     {
         _module = await JS.InvokeAsync<IJSObjectReference>("import", "./_content/NexusReader.UI.Shared/js/knowledgeGraph.js");
         _dotNetHelper = DotNetObjectReference.Create(this);
-        await _module.InvokeVoidAsync("mount", ContainerId, GraphData, _dotNetHelper);
+        await _module.InvokeVoidAsync("mount", ContainerId, GraphService.CurrentGraphData, _dotNetHelper);
     }
 
     private async Task ZoomIn() => await (_module?.InvokeVoidAsync("zoomIn") ?? ValueTask.CompletedTask);
@@ -83,6 +100,8 @@
     [JSInvokable]
     public async Task OnNodeClicked(string nodeId)
     {
+        InteractionService.NotifyNodeSelected(nodeId);
+        
         if (OnNodeSelected.HasDelegate)
         {
             await OnNodeSelected.InvokeAsync(nodeId);
@@ -106,6 +125,10 @@
     public async ValueTask DisposeAsync()
     {
         FocusMode.OnFocusModeChanged -= HandleFocusSimulation;
+        GraphService.OnGraphUpdated -= HandleGraphUpdate;
+        GraphService.OnActiveNodeChanged -= HandleActiveNodeChange;
+        GraphService.OnLoadingChanged -= HandleLoadingChange;
+        
         try
         {
             if (_module is not null)
@@ -114,14 +137,7 @@
                 await _module.DisposeAsync();
             }
         }
-        catch (JSDisconnectedException)
-        {
-            // Ignored, the circuit is already closed
-        }
-        catch (TaskCanceledException)
-        {
-            // Ignored, the circuit is already closed
-        }
+        catch { }
         
         _dotNetHelper?.Dispose();
     }