feat(features): refontes adhesions/admin/auth/backup/contributions/dashboard/epargne/events

- adhesions : bloc complet avec events/states/model, dialogs paiement/rejet
- admin : users bloc, user management list/detail pages
- authentication : bloc + keycloak auth service + webview
- backup : bloc complet, repository, models
- contributions : bloc + widgets + export
- dashboard : widgets connectés (activities, events, notifications, search)
  + charts + monitoring + shortcuts
- epargne : repository, transactions, dialogs
- events : bloc complet, pages (detail, connected, wrapper), models

lib/features/events/presentation/widgets/inscription_event_dialog.dart

@@ -2,6 +2,9 @@
 library inscription_event_dialog;
 
 import 'package:flutter/material.dart';
+import '../../../../shared/design_system/tokens/module_colors.dart';
+import '../../../../shared/design_system/tokens/color_tokens.dart';
+import '../../../../shared/design_system/tokens/app_colors.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import '../../bloc/evenements_bloc.dart';
 import '../../bloc/evenements_event.dart';
@@ -46,7 +49,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
         if (state is EvenementsError) {
           setState(() => _actionSent = false);
           ScaffoldMessenger.of(context).showSnackBar(
-            SnackBar(content: Text(state.message), backgroundColor: Colors.red),
+            SnackBar(content: Text(state.message), backgroundColor: ColorTokens.error),
           );
           return;
         }
@@ -61,7 +64,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
                     : 'Désinscription réussie',
               ),
               backgroundColor:
-                  state is EvenementInscrit ? Colors.green : Colors.orange,
+                  state is EvenementInscrit ? ColorTokens.success : ColorTokens.warning,
             ),
           );
         }
@@ -108,7 +111,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
     return Container(
       padding: const EdgeInsets.all(16),
       decoration: BoxDecoration(
-        color: widget.isInscrit ? Colors.red : const Color(0xFF3B82F6),
+        color: widget.isInscrit ? ColorTokens.error : ModuleColors.evenements,
         borderRadius: const BorderRadius.only(
           topLeft: Radius.circular(4),
           topRight: Radius.circular(4),
@@ -144,8 +147,8 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
     return Container(
       padding: const EdgeInsets.all(12),
       decoration: BoxDecoration(
-        color: Colors.blue[50],
-        border: Border.all(color: Colors.blue[200]!),
+        color: ColorTokens.infoContainer,
+        border: Border.all(color: ColorTokens.infoLight),
         borderRadius: BorderRadius.circular(4),
       ),
       child: Column(
@@ -153,7 +156,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
         children: [
           Row(
             children: [
-              const Icon(Icons.event, color: Color(0xFF3B82F6)),
+              const Icon(Icons.event, color: ModuleColors.evenements),
               const SizedBox(width: 8),
               Expanded(
                 child: Text(
@@ -169,7 +172,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
           const SizedBox(height: 8),
           Row(
             children: [
-              const Icon(Icons.calendar_today, size: 16, color: Colors.grey),
+              const Icon(Icons.calendar_today, size: 16, color: AppColors.textTertiary),
               const SizedBox(width: 8),
               Text(
                 _formatDate(widget.evenement.dateDebut),
@@ -181,7 +184,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
             const SizedBox(height: 4),
             Row(
               children: [
-                const Icon(Icons.location_on, size: 16, color: Colors.grey),
+                const Icon(Icons.location_on, size: 16, color: AppColors.textTertiary),
                 const SizedBox(width: 8),
                 Expanded(
                   child: Text(
@@ -205,9 +208,9 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
     return Container(
       padding: const EdgeInsets.all(12),
       decoration: BoxDecoration(
-        color: isComplet ? Colors.red[50] : Colors.green[50],
+        color: isComplet ? ColorTokens.errorContainer : ColorTokens.successContainer,
         border: Border.all(
-          color: isComplet ? Colors.red[200]! : Colors.green[200]!,
+          color: isComplet ? ColorTokens.errorLight : ColorTokens.successLight,
         ),
         borderRadius: BorderRadius.circular(4),
       ),
@@ -215,7 +218,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
         children: [
           Icon(
             isComplet ? Icons.warning : Icons.check_circle,
-            color: isComplet ? Colors.red : Colors.green,
+            color: isComplet ? ColorTokens.error : ColorTokens.success,
           ),
           const SizedBox(width: 12),
           Expanded(
@@ -226,7 +229,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
                   isComplet ? 'Événement complet' : 'Places disponibles',
                   style: TextStyle(
                     fontWeight: FontWeight.bold,
-                    color: isComplet ? Colors.red[900] : Colors.green[900],
+                    color: isComplet ? ColorTokens.errorDark : ColorTokens.successDark,
                   ),
                 ),
                 if (widget.evenement.maxParticipants != null)
@@ -264,13 +267,13 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
     return Container(
       padding: const EdgeInsets.all(12),
       decoration: BoxDecoration(
-        color: Colors.orange[50],
-        border: Border.all(color: Colors.orange[200]!),
+        color: ColorTokens.warningContainer,
+        border: Border.all(color: ColorTokens.warningLight),
         borderRadius: BorderRadius.circular(4),
       ),
       child: const Row(
         children: [
-          Icon(Icons.warning, color: Colors.orange),
+          Icon(Icons.warning, color: ColorTokens.warning),
           SizedBox(width: 12),
           Expanded(
             child: Text(
@@ -291,8 +294,8 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
     return Container(
       padding: const EdgeInsets.all(16),
       decoration: BoxDecoration(
-        color: Colors.grey[100],
-        border: Border(top: BorderSide(color: Colors.grey[300]!)),
+        color: Theme.of(context).colorScheme.surfaceContainerHighest,
+        border: Border(top: BorderSide(color: Theme.of(context).colorScheme.outline)),
       ),
       child: Row(
         mainAxisAlignment: MainAxisAlignment.end,
@@ -305,7 +308,7 @@ class _InscriptionEventDialogState extends State<InscriptionEventDialog> {
           ElevatedButton(
             onPressed: (widget.isInscrit || !isComplet) ? _submitForm : null,
             style: ElevatedButton.styleFrom(
-              backgroundColor: widget.isInscrit ? Colors.red : const Color(0xFF3B82F6),
+              backgroundColor: widget.isInscrit ? ColorTokens.error : ModuleColors.evenements,
               foregroundColor: Colors.white,
             ),
             child: Text(widget.isInscrit ? 'Se désinscrire' : 'S\'inscrire'),