release: squash merge develop → master

Quotidien / Epic C : feed bulles parent (#173), module Cartes (#194/#195),
evenements_agenda (#205), couples garde AM (#169–#171), API absences (#172).

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/services/auth_service.dart

@@ -383,6 +383,13 @@ class AuthService {
   }
 
   /// Récupère l'utilisateur connecté depuis le cache
+  static const String tokenKey = 'auth_token';
+
+  static Future<String?> getToken() async {
+    final prefs = await SharedPreferences.getInstance();
+    return prefs.getString(tokenKey);
+  }
+
   static Future<AppUser?> getCurrentUser() async {
     final prefs = await SharedPreferences.getInstance();
     final userJson = prefs.getString(_currentUserKey);