fix(workspace): focus a jump target only once, not again after every new block

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/features/workspace/OutlinerTree.tsx

@@ -181,8 +181,14 @@ export const OutlinerTree = forwardRef<OutlinerTreeHandle, OutlinerTreeProps>(({
     }
   }, []);
 
+  // Jump target (e.g. from a task): focused once, as soon as its block is loaded. Running again on later
+  // block changes would pull the cursor back to it after every Enter in the note.
+  const focusedTargetRef = useRef<string | null>(null);
+  const targetLoaded = !!initialFocusedBlockId && blocks.some((b) => b.id === initialFocusedBlockId);
   useEffect(() => {
-    if (initialFocusedBlockId) {
+    if (!initialFocusedBlockId) focusedTargetRef.current = null;
+    if (initialFocusedBlockId && targetLoaded && focusedTargetRef.current !== initialFocusedBlockId) {
+      focusedTargetRef.current = initialFocusedBlockId;
       setHighlightedBlockId(initialFocusedBlockId);
       focusBlockInput(initialFocusedBlockId, 'select');
       const timer = setTimeout(() => {
@@ -200,7 +206,7 @@ export const OutlinerTree = forwardRef<OutlinerTreeHandle, OutlinerTreeProps>(({
         clearTimeout(fadeTimer);
       };
     }
-  }, [initialFocusedBlockId, blocks.length, focusBlockInput]);
+  }, [initialFocusedBlockId, targetLoaded, focusBlockInput]);
 
   // Compute visibility based on collapsed ancestor blocks
   const visibleEntries = useMemo(() => {