chore: fix notification client

mobile/src/auth/AuthContext.tsx

@@ -1,4 +1,4 @@
-import React, { createContext, useContext, useState, useEffect, type ReactNode } from 'react';
+import React, { createContext, useContext, useState, useEffect, useRef, type ReactNode } from 'react';
 import {
   getToken, setToken as storeToken, removeToken,
   getAdminToken, setAdminToken as storeAdminToken, removeAdminToken,
@@ -8,6 +8,12 @@ import {
   clearAllAuth,
 } from './tokenStorage';
 import { extractUsernameFromToken, extractRoleFromToken, isTokenExpired } from './jwtUtils';
+import {
+  setupNotificationChannel,
+  registerForPushNotificationsAsync,
+  sendPushTokenToBackend,
+  removePushTokenFromBackend,
+} from '../services/pushNotifications';
 
 export type UserRole = 'client' | 'admin' | 'cabine' | 'livreur' | null;
 
@@ -30,6 +36,7 @@ interface AuthContextType extends AuthState {
 const AuthContext = createContext<AuthContextType | undefined>(undefined);
 
 export function AuthProvider({ children }: { children: ReactNode }) {
+  const pushTokenRef = useRef<string | null>(null);
   const [state, setState] = useState<AuthState>({
     token: null,
     username: null,
@@ -114,6 +121,15 @@ export function AuthProvider({ children }: { children: ReactNode }) {
       isAuthenticated: true,
       mustChangePassword,
     });
+    // Enregistrer le push token en arrière-plan
+    setupNotificationChannel().then(() =>
+      registerForPushNotificationsAsync()
+    ).then((pushToken) => {
+      if (pushToken) {
+        pushTokenRef.current = pushToken;
+        sendPushTokenToBackend(pushToken);
+      }
+    }).catch(() => {/* silencieux */});
   };
 
   const setMustChangePassword = (value: boolean) => {
@@ -136,6 +152,9 @@ export function AuthProvider({ children }: { children: ReactNode }) {
   };
 
   const logout = async () => {
+    // Supprimer le push token du backend avant de se déconnecter
+    try { await removePushTokenFromBackend(); } catch { /* silencieux */ }
+    pushTokenRef.current = null;
     await clearAllAuth();
     setState({
       token: null,