notes: saveEdit still asked for a title

The one thing step 3 missed, and the typecheck lane caught it: `saveEdit`'s
parameter type still declared `title`, so the editor's call — correctly no
longer passing one — didn't match.

I gated Rust locally and not the frontend. Both are now in ci-requirements,
including WHY the frontend one has to be `npm run build` rather than
`vue-tsc --noEmit`: the typecheck only reads the script block, so a malformed
template sails past it and fails `vite build` in a different workflow, which is
exactly how the stray `</div>` got two commits away from where it was written.

frontend/src/stores/notes.ts

@@ -159,7 +159,7 @@ export const useNotesStore = defineStore("notes", () => {
   const setColor = (id: string, color: NoteColor) => mutate(id, { color });
   const setReminder = (id: string, remindAt: string | null) => mutate(id, { remind_at: remindAt });
   const setRecurrence = (id: string, recurrence: string | null) => mutate(id, { recurrence });
-  const saveEdit = (id: string, changes: { title: string; body: string; color: NoteColor }) => mutate(id, changes);
+  const saveEdit = (id: string, changes: { body: string; color: NoteColor }) => mutate(id, changes);
 
   async function completeReminder(id: string): Promise<void> {
     reconcile(await repo.notes.completeReminder(id));