feat: member portal Sprint 11 — Memories / Gallery

- GalleryAlbum + GalleryItem models + migration (publish gate, cover image, ordered items)
- GalleryModule: admin CRUD for albums + items
- Member endpoints: GET /my/memories (published albums w/ cover + count), GET /my/memories/:id (album + photos)
- /my/memories page: album grid with cover thumbnails
- /my/memories/[id] page: photo grid with captions
- Memories nav item; register GalleryModule

Completes Phase 2 (Intelligence) of the member portal — Sprints 9-11.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/web/app/api/my/memories/route.ts

@@ -0,0 +1,9 @@
+import { jsonResponse, memberApiFetch } from '../../../_lib/api';
+
+export const dynamic = 'force-dynamic';
+
+export async function GET(): Promise<Response> {
+  const res = await memberApiFetch('/my/memories');
+  const body = await res.json();
+  return jsonResponse(body, res.status);
+}