test: mock Schedules service in UserController specs (CI shard fix)

UserController now requires ~/server/services/Schedules for quiesceUserSchedules;
that pulls the real service chain into UserController specs that mock a partial
data-provider (missing ViolationTypes), failing 'api' shards 2/3 at load. Mock
the service in the four UserController specs that lacked it, matching deleteUser.spec.

api/server/controllers/UserController.spec.js

@@ -1,6 +1,10 @@
 const mongoose = require('mongoose');
 const { MongoMemoryServer } = require('mongodb-memory-server');
 
+jest.mock('~/server/services/Schedules', () => ({
+  quiesceUserSchedules: jest.fn().mockResolvedValue(undefined),
+}));
+
 jest.mock('@librechat/data-schemas', () => {
   const actual = jest.requireActual('@librechat/data-schemas');
   return {

api/server/controllers/__tests__/UserController.mcpOAuth.spec.js

@@ -8,6 +8,10 @@ const mockGetMCPManager = jest.fn();
 const mockGetFlowStateManager = jest.fn();
 const mockGetMCPServersRegistry = jest.fn();
 
+jest.mock('~/server/services/Schedules', () => ({
+  quiesceUserSchedules: jest.fn().mockResolvedValue(undefined),
+}));
+
 jest.mock('@librechat/data-schemas', () => ({
   logger: { error: jest.fn(), info: jest.fn(), warn: jest.fn() },
   getTenantId: jest.fn(),

api/server/controllers/__tests__/deleteUserMcpServers.spec.js

@@ -1,6 +1,10 @@
 const mockGetMCPManager = jest.fn();
 const mockInvalidateCachedTools = jest.fn();
 
+jest.mock('~/server/services/Schedules', () => ({
+  quiesceUserSchedules: jest.fn().mockResolvedValue(undefined),
+}));
+
 jest.mock('~/config', () => ({
   getMCPManager: (...args) => mockGetMCPManager(...args),
   getFlowStateManager: jest.fn(),

api/server/controllers/__tests__/maybeUninstallOAuthMCP.spec.js

@@ -15,6 +15,10 @@ const mockLoggerWarn = jest.fn();
 const mockLoggerError = jest.fn();
 const mockGetTenantId = jest.fn();
 
+jest.mock('~/server/services/Schedules', () => ({
+  quiesceUserSchedules: jest.fn().mockResolvedValue(undefined),
+}));
+
 jest.mock('@librechat/data-schemas', () => ({
   logger: { info: mockLoggerInfo, warn: mockLoggerWarn, error: mockLoggerError },
   getTenantId: (...args) => mockGetTenantId(...args),