fix(review): address code review findings — tool conflicts, dual inputs, pin animation

1. TEXT and ERASER tool clicks now suppressed during review mode via
   reviewMode flag on ToolContext (read from ref for live value)
2. Object-comment input hidden when draftPin is active — only one
   creation input visible at a time
3. PinOverlay entrance animation removed — focus styling (scale 1.15x,
   alpha changes) no longer fights with fade-in animation loop

frontend/src/canvas/PinOverlay.ts

@@ -178,11 +178,7 @@ export class PinOverlay extends Container {
 
     this.addChild(container);
 
-    // Entrance animation
-    container.alpha = 0;
-    container.scale.set(0.6);
-    this._animateEntrance(container);
-
+    // No entrance animation — focus styling must not be overwritten by animation.
     return entry;
   }
 
@@ -241,28 +237,6 @@ export class PinOverlay extends Container {
     }
   }
 
-  private _animateEntrance(pin: Container) {
-    const tick = () => {
-      if (pin.destroyed) return;
-      let done = true;
-      if (pin.alpha < 0.99) {
-        pin.alpha += (1 - pin.alpha) * 0.3;
-        done = false;
-      } else {
-        pin.alpha = 1;
-      }
-      const s = pin.scale.x;
-      if (s < 0.99) {
-        pin.scale.set(s + (1 - s) * 0.3);
-        done = false;
-      } else {
-        pin.scale.set(1);
-      }
-      if (!done) requestAnimationFrame(tick);
-    };
-    requestAnimationFrame(tick);
-  }
-
   setGhostPin(pin: { objectId: string; pinX: number; pinY: number } | null) {
     this._ghostPin = pin;
     this._updateGhostPin();

frontend/src/canvas/tools.ts

@@ -49,6 +49,8 @@ export interface ToolContext {
   textEditor?: TextEditor;
   /** Switch back to select tool after placing text. */
   switchToSelect?: () => void;
+  /** When true, destructive/creative tool clicks (TEXT, ERASER) are suppressed. */
+  reviewMode?: boolean;
 }
 
 export function activateTool(
@@ -82,6 +84,7 @@ export function activateTool(
       container.style.cursor = 'text';
 
       const onClick = (e: PointerEvent) => {
+        if (ctx.reviewMode) return; // Review mode suppresses text creation
         const rect = container.getBoundingClientRect();
         const world = viewport.toWorld(e.clientX - rect.left, e.clientY - rect.top);
 
@@ -154,6 +157,7 @@ export function activateTool(
       selection.transformBox.update([]);
 
       const onClick = (e: PointerEvent) => {
+        if (ctx.reviewMode) return; // Review mode suppresses eraser
         const rect = container.getBoundingClientRect();
         const world = viewport.toWorld(e.clientX - rect.left, e.clientY - rect.top);
         const hit = selection._hitTest(world.x, world.y);

frontend/src/components/feedback/FeedbackPanel.tsx

@@ -323,7 +323,7 @@ export default function FeedbackPanel({
       onFilterChange={setFilter}
       onSelectThread={updateExpandedThread}
       onCollapse={() => setCollapsed(true)}
-      selectedObjectId={selectedObjectId}
+      selectedObjectId={draftPin ? null : selectedObjectId}
       selectedObjectLabel={selectedLabel}
       newCommentText={newCommentText}
       onNewCommentChange={setNewCommentText}

frontend/src/pages/Editor.tsx

@@ -102,6 +102,7 @@ export default function Editor({ isPublicView }: EditorProps) {
   const [showMmImport, setShowMmImport] = useState(false);
   const [showExport, setShowExport] = useState(false);
   const [reviewMode, setReviewMode] = useState(false);
+  const reviewModeRef = useRef(false);
   const [focusedThreadId, setFocusedThreadId] = useState<string | null>(null);
   // Pulse signal: threadId to open, or null to collapse detail view
   const [expandRequest, setExpandRequest] = useState<{ threadId: string | null; seq: number } | null>(null);
@@ -201,6 +202,11 @@ export default function Editor({ isPublicView }: EditorProps) {
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [objectCount]);
 
+  // Keep reviewModeRef in sync for tool handlers to read
+  useEffect(() => {
+    reviewModeRef.current = reviewMode;
+  }, [reviewMode]);
+
   // Pins visible only in review mode
   useEffect(() => {
     if (!pinOverlay) return;
@@ -404,6 +410,8 @@ export default function Editor({ isPublicView }: EditorProps) {
       textEditor: textEditor ?? undefined,
       switchToSelect: () => setActiveTool(ToolType.SELECT),
     };
+    // reviewMode is read at click time via getter so it stays current
+    Object.defineProperty(ctx, 'reviewMode', { get: () => reviewModeRef.current });
     toolCleanupRef.current = activateTool(ctx, activeTool, { color, strokeWidth, fontSize });
   }, [activeTool, color, strokeWidth, fontSize, onCanvasChange, textEditor]);