fix: wrap handleRestoreDraft in useCallback and update shared-handlers comment

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: backnotprop

packages/editor/App.tsx

@@ -535,7 +535,7 @@ const App: React.FC = () => {
     submitted: !!submitted,
   });
 
-  const handleRestoreDraft = () => {
+  const handleRestoreDraft = React.useCallback(() => {
     const { annotations: restored, globalAttachments: restoredGlobal } = restoreDraft();
     if (restored.length > 0) {
       setAnnotations(restored);
@@ -545,7 +545,7 @@ const App: React.FC = () => {
         viewerRef.current?.applySharedAnnotations(restored);
       }, 100);
     }
-  };
+  }, [restoreDraft]);
 
   // Fetch available agents for OpenCode (for validation on approve)
   const { agents: availableAgents, validateAgent, getAgentWarning } = useAgents(origin);

packages/server/shared-handlers.ts

@@ -1,8 +1,9 @@
 /**
  * Shared route handlers used by plan, review, and annotate servers.
  *
- * Eliminates duplication of /api/image, /api/upload, and the server-ready
- * handler across all three server files. Also shares /api/agents for plan + review.
+ * Eliminates duplication of /api/image, /api/upload, /api/draft, and the
+ * server-ready handler across all three server files. Also shares /api/agents
+ * for plan + review.
  */
 
 import { mkdirSync } from "fs";