Some changes

backend/routes/activityRoutes.js

@@ -0,0 +1,10 @@
+import express from 'express';
+import { addActivity, getActivities } from '../controllers/activityController.js';
+import { authenticate } from '../middleware/authMiddleware.js';
+
+const router = express.Router();
+
+router.post('/add', authenticate, addActivity);
+router.get('/:diaryDateId', authenticate, getActivities);
+
+export default router;

backend/routes/participantRoutes.js

@@ -0,0 +1,11 @@
+import express from 'express';
+import { getParticipants, addParticipant, removeParticipant } from '../controllers/participantController.js';
+import { authenticate } from '../middleware/authMiddleware.js';
+
+const router = express.Router();
+
+router.get('/:dateId', authenticate, getParticipants);
+router.post('/add', authenticate, addParticipant);
+router.post('/remove', authenticate, removeParticipant);
+
+export default router;