feat(inbox): React shell + store + component stubs (v0.2)

Task 22 of the slice plan. Wires the Inbox window's renderer:
- index.html (replaces the placeholder shipped in Task 2) with
  the full layout styles + module script.
- api.ts re-exports window.inkling.inbox as a typed InboxApi.
- recoveryToast.ts persists per-day toast dismissal in
  localStorage (KST date key) so the banner never re-fires
  after the user closes it.
- store.ts: zustand store with notes, continuity, pendingCount,
  ollamaStatus, loadInitial(), refreshMeta(), upsert/remove.
- main.tsx mounts <App />.
- App.tsx orchestrates loadInitial + onNoteUpdated subscription
  + window-focus refresh, renders header / banners / note list.
- 7 component stubs (NoteCard / EditableField / IntentBanner /
  RecoveryToast / ContinuityBadge / PendingBanner / OllamaBanner)
  so the shell typechecks today; Tasks 23-28 swap each in.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/renderer/inbox/components/NoteCard.tsx

@@ -0,0 +1,5 @@
+import React from 'react';
+import type { Note } from '@shared/types';
+export function NoteCard({ note }: { note: Note; onDeleted: () => void; onUpdated: (n: Note) => void }) {
+  return <div style={{ background: 'white', padding: 12, marginBottom: 10, borderRadius: 8 }}>{note.rawText}</div>;
+}