feat(hobbs-organizer): v1.2.0 photo frame (/photo) with Google Photos shared albums

- /photo full-screen slideshow (crossfade, blurred backdrop or fill, shuffle, date)
- admin Photos tab: add shared-album links (check, sync now, status/stale warnings),
  slideshow options, browser-resized uploads
- 6-hourly album sync scraping the share page (Library API no longer exposes
  user albums), caches 1920px + 64px copies in /data/photos
- /api/health/photos -> 503 when an album has not synced for 48h
- history/restore covers photo settings; min admin password length 6

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E9NnVEico3WvFxLyjy1iW3

tv app/Hobbs-Family-Organizer-Self-Hosted-v1.0.0/app/api/admin/photos/check/route.ts

@@ -0,0 +1,27 @@
+import { json, readJsonBody, requireAdmin } from "../../../../_lib/auth";
+import { MAX_PHOTOS_PER_ALBUM, scrapeAlbum } from "../../../../_lib/photos";
+import { validAlbumUrl } from "../../../../_lib/store";
+
+export const dynamic = "force-dynamic";
+
+/** Reads a share link without saving it: album title and how many photos/videos it has. */
+export async function POST(request: Request) {
+  const denied = await requireAdmin(request, { mutating: true });
+  if (denied) return denied;
+  const body = await readJsonBody<{ shareUrl?: string }>(request);
+  const shareUrl = validAlbumUrl(body?.shareUrl);
+  if (!shareUrl) return json({ ok: false, error: "Not a Google Photos share link." }, 400);
+  try {
+    const album = await scrapeAlbum(shareUrl);
+    const videos = album.items.filter((item) => item.video).length;
+    return json({
+      ok: true,
+      title: album.title,
+      photos: album.items.length - videos,
+      videos,
+      truncated: album.hasMorePages || album.items.length - videos > MAX_PHOTOS_PER_ALBUM,
+    });
+  } catch (error) {
+    return json({ ok: false, error: error instanceof Error ? error.message : "Could not read the album." });
+  }
+}