added init files

backend/src/routes/shiftPlans.ts

@@ -0,0 +1,21 @@
+// backend/src/routes/shiftPlans.ts
+import express from 'express';
+import { authMiddleware, requireRole } from '../middleware/auth';
+import { 
+  getShiftPlans, 
+  getShiftPlan, 
+  createShiftPlan, 
+  updateShiftPlan, 
+  deleteShiftPlan 
+} from '../controllers/shiftPlanController';
+
+const router = express.Router();
+
+router.use(authMiddleware);
+router.get('/', getShiftPlans);
+router.get('/:id', getShiftPlan);
+router.post('/', requireRole(['admin', 'instandhalter']), createShiftPlan);
+router.put('/:id', updateShiftPlan);
+router.delete('/:id', deleteShiftPlan);
+
+export default router;