better errors for routes

src/routes/admin.system.routes.test.ts

@@ -5,6 +5,7 @@ import express, { Request, Response, NextFunction } from 'express';
 import adminRouter from './admin.routes';
 import { createMockUserProfile } from '../tests/utils/mockFactories';
 import { UserProfile } from '../types';
+import { errorHandler } from '../middleware/errorHandler';
 
 // Mock dependencies
 vi.mock('../services/geocodingService.server', () => ({
@@ -52,9 +53,7 @@ const createApp = () => {
   const app = express();
   app.use(express.json());
   app.use('/api/admin', adminRouter);
-  app.use((err: Error, req: Request, res: Response, next: NextFunction) => {
-    res.status(500).json({ message: err.message || 'Internal Server Error' });
-  });
+  app.use(errorHandler);
   return app;
 };