feat: implement dynamic knowledge graph updates and state management services

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

@@ -1,5 +1,7 @@
 @using NexusReader.UI.Shared.Services
+@using NexusReader.Application.Abstractions.Services
 @inject IFocusModeService FocusMode
+@inject IKnowledgeService KnowledgeService
 
 <aside class="intelligence-toolbar">
     <div class="toolbar-top">
@@ -21,6 +23,9 @@
         <button class="toolbar-item" title="Search">
             <NexusIcon Name="search" Size="20" />
         </button>
+        <button class="toolbar-item danger" @onclick="HandleClearCache" title="Clear AI Cache">
+            <NexusIcon Name="trash" Size="20" />
+        </button>
     </div>
 
     <div class="toolbar-bottom">
@@ -40,6 +45,17 @@
         FocusMode.OnFocusModeChanged += StateHasChanged;
     }
 
+    private async Task HandleClearCache()
+    {
+        // For now, a simple console log confirm or just do it
+        Console.WriteLine("[IntelligenceToolbar] Requesting cache clear...");
+        var result = await KnowledgeService.ClearCacheAsync();
+        if (result.IsSuccess)
+        {
+            Console.WriteLine("[IntelligenceToolbar] Cache cleared successfully!");
+        }
+    }
+
     public void Dispose()
     {
         FocusMode.OnFocusModeChanged -= StateHasChanged;