fix(opds): include public smart scopes in OPDS feeds

Allow users to access public smart scopes through the OPDS endpoint. Currently, the service only queries smart scopes owned by the requesting user, which prevents public smart scopes created by other users from showing up on devices like KOReader.

Fixes #560

server/src/modules/opds/__tests__/opds-book.service.test.ts

@@ -204,10 +204,16 @@ describe('OpdsBookService', () => {
   });
 
   it('returns user collections and smartScopes', async () => {
-    const { service } = makeService([[{ id: 4, name: 'Favorites', bookCount: 1 }], [{ id: 7, name: 'Unread', icon: 'sparkles' }]]);
+    const { service, db } = makeService([[{ id: 4, name: 'Favorites', bookCount: 1 }], [{ id: 7, name: 'Unread', icon: 'sparkles' }]]);
 
     await expect(service.getUserCollections(8)).resolves.toEqual([{ id: 4, name: 'Favorites', bookCount: 1 }]);
     await expect(service.getUserSmartScopes(8)).resolves.toEqual([{ id: 7, name: 'Unread', icon: 'sparkles' }]);
+
+    const chains = (db.select as ReturnType<typeof vi.fn>).mock.results.map((r) => r.value as Record<string, unknown>);
+    const smartScopeChain = chains[1]!;
+    const whereClause = (smartScopeChain.where as ReturnType<typeof vi.fn>).mock.calls[0]?.[0];
+    expect(collectValues(whereClause)).toContain(8);
+    expect(collectValues(whereClause)).toContain(true);
   });
 
   it('enforces validateBookAccess ownership checks', async () => {

server/src/modules/opds/opds-book.service.ts

@@ -440,7 +440,7 @@ export class OpdsBookService {
         icon: smartScopes.icon,
       })
       .from(smartScopes)
-      .where(eq(smartScopes.userId, userId))
+      .where(or(eq(smartScopes.userId, userId), eq(smartScopes.isPublic, true)))
       .orderBy(smartScopes.name);
   }