initial ai assistance

src/ui/Overlay.tsx

@@ -81,6 +81,20 @@ function ActionBar({ block }: { block: Block }) {
       live = false
     }
   }, [block.id, ctrl, block.el])
+  // Refresh the position after any edit settles (move, undo/redo, drag) so the arrows' disabled state tracks it.
+  const busy = useEditorState((s) => s.busy)
+  const rev = useEditorState((s) => `${s.canUndo}${s.canRedo}`)
+  useEffect(() => {
+    if (busy) return
+    let live = true
+    ctrl
+      .position(block.id)
+      .then((p) => live && setPos((o) => (o && o.index === p.index && o.count === p.count ? o : p)))
+      .catch(() => {})
+    return () => {
+      live = false
+    }
+  }, [busy, rev, block.id, ctrl])
   useEffect(() => {
     if (!open) return
     const away = (e: Event) => !e.composedPath().includes(menuRef.current!) && setOpen(false)