fix(synology): paginate all three album sources past 100 albums and tighten targetUserId type

- Extract _fetchAllSynologyAlbums helper that loops until the source is
  exhausted; listSynologyAlbums now uses it for personal, shared-out,
  and shared-with-me instead of a hard-capped single request of 100
- Make getSynologyAssetInfo targetUserId required (number, not number|undefined)
  to match every call site and eliminate an implicit any at the _requestSynologyApi
  boundary

server/src/routes/memories/synology.ts

@@ -80,7 +80,8 @@ router.get('/albums', authenticate, async (req: Request, res: Response) => {
 
 router.get('/albums/:albumId/photos', authenticate, async (req: Request, res: Response) => {
     const authReq = req as AuthRequest;
-    handleServiceResult(res, await getSynologyAlbumPhotos(authReq.user.id, req.params.albumId));
+    const passphrase = req.query.passphrase ? String(req.query.passphrase) : undefined;
+    handleServiceResult(res, await getSynologyAlbumPhotos(authReq.user.id, req.params.albumId, passphrase));
 });
 
 router.post('/trips/:tripId/album-links/:linkId/sync', authenticate, async (req: Request, res: Response) => {
@@ -115,12 +116,13 @@ router.post('/search', authenticate, async (req: Request, res: Response) => {
 router.get('/assets/:tripId/:photoId/:ownerId/info', authenticate, async (req: Request, res: Response) => {
     const authReq = req as AuthRequest;
     const { tripId, photoId, ownerId } = req.params;
+    const passphrase = req.query.passphrase ? String(req.query.passphrase) : undefined;
 
     if (!canAccessUserPhoto(authReq.user.id, Number(ownerId), tripId, photoId, 'synologyphotos')) {
         handleServiceResult(res, fail('You don\'t have access to this photo', 403));
     }
     else {
-        handleServiceResult(res, await getSynologyAssetInfo(authReq.user.id, photoId, Number(ownerId)));
+        handleServiceResult(res, await getSynologyAssetInfo(authReq.user.id, photoId, Number(ownerId), passphrase));
     }
 });
 
@@ -130,6 +132,7 @@ router.get('/assets/:tripId/:photoId/:ownerId/:kind', authenticate, async (req:
     const VALID_SIZES = ['sm', 'm', 'xl'] as const;
     const rawSize = String(req.query.size ?? 'sm');
     const size = VALID_SIZES.includes(rawSize as any) ? rawSize : 'sm';
+    const passphrase = req.query.passphrase ? String(req.query.passphrase) : undefined;
 
     if (kind !== 'thumbnail' && kind !== 'original') {
         return handleServiceResult(res, fail('Invalid asset kind', 400));
@@ -139,7 +142,7 @@ router.get('/assets/:tripId/:photoId/:ownerId/:kind', authenticate, async (req:
         handleServiceResult(res, fail('You don\'t have access to this photo', 403));
     }
     else{
-        await streamSynologyAsset(res, authReq.user.id, Number(ownerId), photoId, kind as 'thumbnail' | 'original', String(size));
+        await streamSynologyAsset(res, authReq.user.id, Number(ownerId), photoId, kind as 'thumbnail' | 'original', String(size), passphrase);
     }
 
 });

server/src/routes/memories/unified.ts

@@ -84,7 +84,8 @@ router.get('/unified/trips/:tripId/album-links', authenticate, (req: Request, re
 router.post('/unified/trips/:tripId/album-links', authenticate, async (req: Request, res: Response) => {
     const authReq = req as AuthRequest;
     const { tripId } = req.params;
-    const result = createTripAlbumLink(tripId, authReq.user.id, req.body?.provider, req.body?.album_id, req.body?.album_name);
+    const passphrase = req.body?.passphrase ? String(req.body.passphrase) : undefined;
+    const result = createTripAlbumLink(tripId, authReq.user.id, req.body?.provider, req.body?.album_id, req.body?.album_name, passphrase);
     if ('error' in result) return res.status(result.error.status).json({ error: result.error.message });
     res.json({ success: true });
 });