feat(ui): RefreshIndicator + AlwaysScrollable + dark mode sur 14 pages

RefreshIndicator ajouté (dispatche les events BLoC appropriés) :
- adhesion_detail, adhesions_page, demande_aide_detail, demandes_aide_page
- event_detail, organization_detail, org_selector, org_types
- user_management_detail, reports (TabBarView), logs (Dashboard tab)
- profile (onglet Perso), backup (3 onglets), notifications

Fixes associés :
- AlwaysScrollableScrollPhysics sur tous les scroll widgets
  (permet pull-to-refresh même si contenu < écran)
- Empty states des listes : wrappés dans SingleChildScrollView pour refresh
- Dark mode adaptatif sur textes/surfaces/borders hardcodés
- backup_page : bouton retour ajouté dans le header gradient
- org_types : chevron/star/border adaptatifs
- reports : couleurs placeholders graphique + chevrons

lib/features/events/presentation/pages/event_detail_page.dart

@@ -2,7 +2,10 @@
 library event_detail_page;
 
 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 '../../../../shared/design_system/components/uf_app_bar.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import '../../../../core/di/injection.dart';
 import '../../bloc/evenements_bloc.dart';
@@ -51,10 +54,9 @@ class _EventDetailPageState extends State<EventDetailPage> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      appBar: AppBar(
-        title: const Text('Détails de l\'événement'),
-        backgroundColor: AppColors.primaryGreen,
-        foregroundColor: Colors.white,
+      appBar: UFAppBar(
+        title: "Détails de l'événement",
+        moduleGradient: ModuleColors.evenementsGradient,
         actions: [
           IconButton(
             icon: const Icon(Icons.edit),
@@ -62,10 +64,16 @@ class _EventDetailPageState extends State<EventDetailPage> {
           ),
         ],
       ),
-      body: BlocBuilder<EvenementsBloc, EvenementsState>(
-        builder: (context, state) {
-          return SingleChildScrollView(
-            child: Column(
+      body: SafeArea(
+        top: false,
+        child: BlocBuilder<EvenementsBloc, EvenementsState>(
+          builder: (context, state) {
+            return RefreshIndicator(
+              color: ModuleColors.evenements,
+              onRefresh: _loadInscriptionStatus,
+              child: SingleChildScrollView(
+              physics: const AlwaysScrollableScrollPhysics(),
+              child: Column(
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 _buildHeader(),
@@ -76,8 +84,10 @@ class _EventDetailPageState extends State<EventDetailPage> {
                 const SizedBox(height: 80), // Espace pour le bouton flottant
               ],
             ),
-          );
+            ),   // SingleChildScrollView
+          );     // RefreshIndicator
         },
+        ),
       ),
       floatingActionButton: _buildInscriptionButton(context),
     );
@@ -87,12 +97,9 @@ class _EventDetailPageState extends State<EventDetailPage> {
     return Container(
       width: double.infinity,
       padding: const EdgeInsets.all(16),
-      decoration: BoxDecoration(
+      decoration: const BoxDecoration(
         gradient: LinearGradient(
-          colors: [
-            AppColors.primaryGreen,
-            AppColors.primaryGreen.withOpacity(0.8),
-          ],
+          colors: ModuleColors.evenementsGradient,
           begin: Alignment.topLeft,
           end: Alignment.bottomRight,
         ),
@@ -191,7 +198,7 @@ class _EventDetailPageState extends State<EventDetailPage> {
       padding: const EdgeInsets.symmetric(vertical: 8),
       child: Row(
         children: [
-          Icon(icon, color: AppColors.primaryGreen, size: 20),
+          Icon(icon, color: ModuleColors.evenements, size: 20),
           const SizedBox(width: 12),
           Expanded(
             child: Column(
@@ -201,7 +208,7 @@ class _EventDetailPageState extends State<EventDetailPage> {
                   label,
                   style: TextStyle(
                     fontSize: 12,
-                    color: Colors.grey[600],
+                    color: Theme.of(context).colorScheme.onSurfaceVariant,
                   ),
                 ),
                 const SizedBox(height: 2),
@@ -261,7 +268,7 @@ class _EventDetailPageState extends State<EventDetailPage> {
           const SizedBox(height: 8),
           Row(
             children: [
-              const Icon(Icons.location_on, color: AppColors.primaryGreen),
+              const Icon(Icons.location_on, color: ModuleColors.evenements),
               const SizedBox(width: 8),
               Expanded(
                 child: Text(
@@ -296,7 +303,7 @@ class _EventDetailPageState extends State<EventDetailPage> {
                 '${widget.evenement.participantsActuels} inscrits',
                 style: TextStyle(
                   fontSize: 14,
-                  color: Colors.grey[600],
+                  color: Theme.of(context).colorScheme.onSurfaceVariant,
                 ),
               ),
             ],
@@ -305,7 +312,7 @@ class _EventDetailPageState extends State<EventDetailPage> {
           Container(
             padding: const EdgeInsets.all(12),
             decoration: BoxDecoration(
-              color: Colors.grey[100],
+              color: Theme.of(context).colorScheme.surfaceContainerHighest,
               borderRadius: BorderRadius.circular(8),
             ),
             child: const Row(
@@ -335,14 +342,14 @@ class _EventDetailPageState extends State<EventDetailPage> {
     if (!isComplet) {
       return FloatingActionButton.extended(
         onPressed: () => _showInscriptionDialog(context, isInscrit),
-        backgroundColor: AppColors.primaryGreen,
+        backgroundColor: ModuleColors.evenements,
         icon: const Icon(Icons.check),
         label: const Text('S\'inscrire'),
       );
     } else {
       return const FloatingActionButton.extended(
         onPressed: null,
-        backgroundColor: Colors.grey,
+        backgroundColor: AppColors.textTertiary,
         icon: Icon(Icons.block),
         label: Text('Complet'),
       );
@@ -425,17 +432,17 @@ class _EventDetailPageState extends State<EventDetailPage> {
   Color _getStatutColor(StatutEvenement statut) {
     switch (statut) {
       case StatutEvenement.planifie:
-        return AppColors.info;
+        return ColorTokens.info;
       case StatutEvenement.confirme:
-        return AppColors.success;
+        return ColorTokens.success;
       case StatutEvenement.enCours:
-        return AppColors.warning;
+        return ColorTokens.warningLight;
       case StatutEvenement.termine:
-        return AppColors.textSecondaryLight;
+        return ColorTokens.textSecondary;
       case StatutEvenement.annule:
-        return AppColors.error;
+        return ColorTokens.error;
       case StatutEvenement.reporte:
-        return AppColors.brandGreen;
+        return ColorTokens.warning;
     }
   }
 }