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/dashboard/presentation/widgets/shortcuts/dashboard_shortcuts_widget.dart

@@ -41,7 +41,7 @@ class DashboardShortcutsWidget extends StatelessWidget {
       children: [
         const Icon(
           Icons.flash_on_outlined,
-          color: AppColors.primaryGreen,
+          color: AppColors.primary,
           size: 18,
         ),
         const SizedBox(width: 8),
@@ -97,7 +97,7 @@ class DashboardShortcutsWidget extends StatelessWidget {
           Text(
             shortcut.title,
             style: AppTypography.subtitleSmall.copyWith(
-              color: AppColors.textPrimaryLight,
+              color: AppColors.textPrimary,
               fontSize: 9,
               fontWeight: FontWeight.w500,
             ),
@@ -127,7 +127,7 @@ class DashboardShortcutsWidget extends StatelessWidget {
       DashboardShortcut(
         title: 'Créer\nÉvénement',
         icon: Icons.event_available_outlined,
-        color: AppColors.primaryGreen,
+        color: AppColors.primary,
         onTap: () {
           Navigator.of(context).push(
             MaterialPageRoute(
@@ -139,7 +139,7 @@ class DashboardShortcutsWidget extends StatelessWidget {
       DashboardShortcut(
         title: 'Ajouter\nContribution',
         icon: Icons.account_balance_wallet_outlined,
-        color: AppColors.brandGreen,
+        color: AppColors.primaryDark,
         onTap: () {
           Navigator.of(context).push(
             MaterialPageRoute(
@@ -163,7 +163,7 @@ class DashboardShortcutsWidget extends StatelessWidget {
       DashboardShortcut(
         title: 'Paramètres',
         icon: Icons.settings_outlined,
-        color: AppColors.textSecondaryLight,
+        color: AppColors.textSecondary,
         onTap: () {
           Navigator.of(context).push(
             MaterialPageRoute(