feat(loans): confirm declared material state changes

eme-backend/src/routes/emprunt.routes.ts

@@ -1,8 +1,14 @@
 import { Router } from 'express';
-import { getMesEmprunts, postEmprunt, postRestitution } from '../controllers/emprunt.controller';
+import {
+  getMesEmprunts,
+  postAlerteChangementRetour,
+  postEmprunt,
+  postRestitution,
+} from '../controllers/emprunt.controller';
 
 export const empruntRoutes: Router = Router();
 empruntRoutes.post('/', postEmprunt);
+empruntRoutes.post('/:id/alerte-changement-retour', postAlerteChangementRetour);
 empruntRoutes.post('/:id/restitution', postRestitution);
 
 export const mesEmpruntsRoutes: Router = Router();