fix(modale): champs MDP actuel lavande, nouveau et confirmation jaune

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

frontend/lib/screens/auth/login_screen.dart

@@ -1,4 +1,5 @@
 import 'dart:async';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:google_fonts/google_fonts.dart';
 import 'package:url_launcher/url_launcher.dart';
@@ -360,6 +361,17 @@ class _LoginPageState extends State<LoginScreen> with WidgetsBindingObserver {
                                 context.go('/privacy');
                               },
                             ),
+                            if (kDebugMode)
+                              _FooterLink(
+                                text: 'Test modale MDP',
+                                onTap: () async {
+                                  await showDialog<bool>(
+                                    context: context,
+                                    barrierDismissible: false,
+                                    builder: (context) => const ChangePasswordDialog(),
+                                  );
+                                },
+                              ),
                           ],
                         ),
                       ),
@@ -556,6 +568,18 @@ class _LoginPageState extends State<LoginScreen> with WidgetsBindingObserver {
                             fontSize: 11,
                             onTap: () => context.go('/privacy'),
                           ),
+                          if (kDebugMode)
+                            _FooterLink(
+                              text: 'Test modale MDP',
+                              fontSize: 11,
+                              onTap: () async {
+                                await showDialog<bool>(
+                                  context: context,
+                                  barrierDismissible: false,
+                                  builder: (context) => const ChangePasswordDialog(),
+                                );
+                              },
+                            ),
                         ],
                       ),
                     ),

frontend/lib/widgets/auth/change_password_dialog.dart

@@ -196,7 +196,7 @@ class _ChangePasswordDialogState extends State<ChangePasswordDialog> {
                   hintText: 'Retapez le nouveau mot de passe',
                   obscureText: true,
                   validator: _validateConfirmPassword,
-                  style: CustomAppTextFieldStyle.lavande,
+                  style: CustomAppTextFieldStyle.jaune,
                   fieldHeight: 53,
                   fieldWidth: double.infinity,
                   enabled: !_isLoading,