M9 S3 (frontend): recall views adopt useNoteList + AsyncState/EmptyState

The Search / Timeline / Reminders views each hand-rolled the same
items+loading+error scaffold, retry button, and editor-host glue.

- useNoteList(fetcher, fallbackError) (new): the load-a-note-list scaffold
  (items/loading/error + a load() that never leaves a half-state). Views
  supply just the fetcher; the refs drive <AsyncState>.
- SearchView / TimelineView / RemindersView: adopt useNoteList + useNoteEditor
  + <AsyncState>/<EmptyState>; drop the local list/loading/error refs, the
  duplicated retry blocks, and the notes.items-shadowing navigate glue.
- GraphView: editor host now via useNoteEditor (openNode/closeEditor/onNavigate
  collapse to navigate); loading/error via <AsyncState>. Its two empty states
  keep inline markup/buttons, so they stay custom (not forced into EmptyState).
- reminders store: fetchReminders() is the single owner of /api/notes/reminders;
  both the background poll (check) and RemindersView read through it.

Frontend-only; CI vue-tsc is the type gate (no local typecheck, rule 10).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm

frontend/src/stores/reminders.ts

@@ -20,11 +20,17 @@ export const useReminderStore = defineStore("reminders", () => {
   let timer: ReturnType<typeof setInterval> | undefined;
   let primed = false;
 
+  // Single owner of the reminders endpoint — the RemindersView reads its list through
+  // this too, so the URL + response shape live in one place.
+  async function fetchReminders(): Promise<Note[]> {
+    return (await api.get<{ notes: Note[] }>("/api/notes/reminders")).notes;
+  }
+
   async function check(): Promise<void> {
     const ui = useUiStore();
     let notes: Note[];
     try {
-      notes = (await api.get<{ notes: Note[] }>("/api/notes/reminders")).notes;
+      notes = await fetchReminders();
     } catch {
       return;
     }
@@ -66,5 +72,5 @@ export const useReminderStore = defineStore("reminders", () => {
     osEnabled.value = (await Notification.requestPermission()) === "granted";
   }
 
-  return { osSupported, osEnabled, start, stop, enableOs };
+  return { osSupported, osEnabled, start, stop, enableOs, fetchReminders };
 });