feat(frontend): simulate authenticated user sessions

eme-frontend/lib/services/responsable_service.dart

@@ -4,13 +4,8 @@ import "api_client.dart";
 class ResponsableService {
   ResponsableService._();
 
-  static const String _email = ApiClient.responsableEmail;
-
   static Future<Map<String, dynamic>> dashboard() async {
-    final reponse = await ApiClient.get(
-      "/responsable/dashboard",
-      utilisateurEmail: _email,
-    );
+    final reponse = await ApiClient.get("/responsable/dashboard");
     return Map<String, dynamic>.from(reponse["data"] as Map);
   }
 
@@ -32,14 +27,12 @@ class ResponsableService {
   static Future<ApiFile> exporterHistorique() => ApiClient.getFile(
     "/responsable/historique/export.csv",
     fallbackFileName: "historique-responsable.csv",
-    utilisateurEmail: _email,
   );
 
   static Future<int> marquerNotificationsLues() async {
     final reponse = await ApiClient.patch(
       "/responsable/notifications/lu-toutes",
       {},
-      utilisateurEmail: _email,
     );
     final data = Map<String, dynamic>.from(reponse["data"] as Map);
     return data["count"] as int;
@@ -52,12 +45,12 @@ class ResponsableService {
     final reponse = await ApiClient.patch("/responsable/anomalies/$id/statut", {
       "statut": statut,
       "observation": "Traitement depuis l'interface responsable",
-    }, utilisateurEmail: _email);
+    });
     return Map<String, dynamic>.from(reponse["data"] as Map);
   }
 
   static Future<List<Map<String, dynamic>>> _liste(String chemin) async {
-    final reponse = await ApiClient.get(chemin, utilisateurEmail: _email);
+    final reponse = await ApiClient.get(chemin);
     final data = reponse["data"] as List;
     return data.map((item) => Map<String, dynamic>.from(item as Map)).toList();
   }