TASK 7 UI polish batch: scene/source row cleanup, dedup naming, full social handles — scenes are now pure selection rows (edit/trash/visibility icons and inline rename removed with EditSceneCommand/RemoveSceneCommand/ToggleSceneVisibilityCommand + Scene.IsEditing); source rows gained the trio (new EditElementCommand → inline rename via SceneElement.IsEditing, ToggleElementVisibilityCommand → eye flips IsVisible, open/slashed style rebound, hidden rows dim to 45%); duplicate resource names get a no-space incrementing suffix via shared NextSourceName (Image, Image2, Image3…) derived from actual names so deletions never collide (AddSource + AddReusedImage); social bar renders the full validated handle (MaxWidth=200 + TextTrimming removed from SocialBarRenderer and the preview template); side panels stay fixed 220/300; focus-loss capture lag documented in ai.md as a known OS limit (deferred) — the two real-App tests now share RealAppHost, a dedicated STA thread owning the single WPF App, instead of each calling new App(); new SourceNamingTests integration test (Text/Text2/Text3, delete-middle re-add no-collision) — 170 tests passing, 0 warnings

Models/Scene.cs

@@ -9,7 +9,6 @@ public class Scene : INotifyPropertyChanged
     public string Id { get; init; } = Guid.NewGuid().ToString();
 
     private string _name = string.Empty;
-    private bool _isEditing;
     private bool _isHidden;
     private bool _hasBackdrop;
     private bool _hasSocialBar;
@@ -20,12 +19,6 @@ public class Scene : INotifyPropertyChanged
         set => Set(ref _name, value);
     }
 
-    public bool IsEditing
-    {
-        get => _isEditing;
-        set => Set(ref _isEditing, value);
-    }
-
     public bool IsHidden
     {
         get => _isHidden;

Models/SceneElement.cs

@@ -53,6 +53,9 @@ public abstract class SceneElement : INotifyPropertyChanged
     private bool _isVisible = true;
     public bool IsVisible { get => _isVisible; set => Set(ref _isVisible, value); }
 
+    private bool _isEditing;
+    public bool IsEditing { get => _isEditing; set => Set(ref _isEditing, value); }
+
     private ClipShape _clipShape = ClipShape.Traditional;
     public ClipShape ClipShape
     {