feat: WebSocket temps réel + Finance Workflow + corrections

- Task #6: WebSocket /ws/dashboard + Kafka events (5 topics)
  * Backend: KafkaEventProducer, KafkaEventConsumer
  * Mobile: WebSocketService (reconnection, heartbeat, typed events)
  * DashboardBloc: Auto-refresh depuis WebSocket events

- Finance Workflow: approbations + budgets (backend + mobile)
  * Backend: entities, services, resources, migrations Flyway V6
  * Mobile: features finance_workflow complète avec BLoC

- Corrections DI: interfaces IRepository partout
  * IProfileRepository, IOrganizationRepository, IMembreRepository
  * GetIt configuré avec @injectable

- Spec-Kit: constitution + templates mis à jour
  * .specify/memory/constitution.md enrichie
  * Templates agent, plan, spec, tasks, checklist

- Nettoyage: fichiers temporaires supprimés

Signed-off-by: lions dev Team

unionflow/unionflow-mobile-apps/lib/shared/design_system/components/buttons/uf_primary_button.dart

@@ -5,9 +5,7 @@
 library uf_primary_button;
 
 import 'package:flutter/material.dart';
-import '../../tokens/color_tokens.dart';
-import '../../tokens/spacing_tokens.dart';
-import '../../tokens/typography_tokens.dart';
+import '../../unionflow_design_system.dart';
 
 /// Bouton primaire UnionFlow
 /// 
@@ -38,6 +36,12 @@ class UFPrimaryButton extends StatelessWidget {
   
   /// Hauteur personnalisée (optionnel)
   final double? height;
+  
+  /// Couleur de fond personnalisée (optionnel)
+  final Color? backgroundColor;
+  
+  /// Couleur du texte/icône personnalisée (optionnel)
+  final Color? textColor;
 
   const UFPrimaryButton({
     super.key,
@@ -47,6 +51,8 @@ class UFPrimaryButton extends StatelessWidget {
     this.icon,
     this.isFullWidth = false,
     this.height,
+    this.backgroundColor,
+    this.textColor,
   });
 
   @override
@@ -57,12 +63,12 @@ class UFPrimaryButton extends StatelessWidget {
       child: ElevatedButton(
         onPressed: isLoading ? null : onPressed,
         style: ElevatedButton.styleFrom(
-          backgroundColor: ColorTokens.primary, // Bleu roi
-          foregroundColor: ColorTokens.onPrimary, // Blanc
-          disabledBackgroundColor: ColorTokens.primary.withOpacity(0.5),
-          disabledForegroundColor: ColorTokens.onPrimary.withOpacity(0.7),
+          backgroundColor: backgroundColor ?? AppColors.primaryGreen, 
+          foregroundColor: textColor ?? Colors.white, 
+          disabledBackgroundColor: (backgroundColor ?? AppColors.primaryGreen).withOpacity(0.5),
+          disabledForegroundColor: (textColor ?? Colors.white).withOpacity(0.7),
           elevation: SpacingTokens.elevationSm,
-          shadowColor: ColorTokens.shadow,
+          shadowColor: AppColors.darkBorder.withOpacity(0.1),
           padding: const EdgeInsets.symmetric(
             horizontal: SpacingTokens.buttonPaddingHorizontal,
             vertical: SpacingTokens.buttonPaddingVertical,
@@ -78,7 +84,7 @@ class UFPrimaryButton extends StatelessWidget {
                 child: CircularProgressIndicator(
                   strokeWidth: 2,
                   valueColor: AlwaysStoppedAnimation<Color>(
-                    ColorTokens.onPrimary,
+                    Colors.white,
                   ),
                 ),
               )
@@ -92,7 +98,7 @@ class UFPrimaryButton extends StatelessWidget {
                   ],
                   Text(
                     label,
-                    style: TypographyTokens.buttonLarge,
+                    style: AppTypography.actionText,
                   ),
                 ],
               ),

unionflow/unionflow-mobile-apps/lib/shared/design_system/components/buttons/uf_secondary_button.dart

@@ -5,9 +5,7 @@
 library uf_secondary_button;
 
 import 'package:flutter/material.dart';
-import '../../tokens/color_tokens.dart';
-import '../../tokens/spacing_tokens.dart';
-import '../../tokens/typography_tokens.dart';
+import '../../unionflow_design_system.dart';
 
 /// Bouton secondaire UnionFlow
 class UFSecondaryButton extends StatelessWidget {
@@ -36,12 +34,12 @@ class UFSecondaryButton extends StatelessWidget {
       child: ElevatedButton(
         onPressed: isLoading ? null : onPressed,
         style: ElevatedButton.styleFrom(
-          backgroundColor: ColorTokens.secondary, // Indigo
-          foregroundColor: ColorTokens.onSecondary, // Blanc
-          disabledBackgroundColor: ColorTokens.secondary.withOpacity(0.5),
-          disabledForegroundColor: ColorTokens.onSecondary.withOpacity(0.7),
+          backgroundColor: AppColors.brandGreen, 
+          foregroundColor: Colors.white, 
+          disabledBackgroundColor: AppColors.brandGreen.withOpacity(0.5),
+          disabledForegroundColor: Colors.white.withOpacity(0.7),
           elevation: SpacingTokens.elevationSm,
-          shadowColor: ColorTokens.shadow,
+          shadowColor: AppColors.darkBorder.withOpacity(0.1),
           padding: const EdgeInsets.symmetric(
             horizontal: SpacingTokens.buttonPaddingHorizontal,
             vertical: SpacingTokens.buttonPaddingVertical,
@@ -57,7 +55,7 @@ class UFSecondaryButton extends StatelessWidget {
                 child: CircularProgressIndicator(
                   strokeWidth: 2,
                   valueColor: AlwaysStoppedAnimation<Color>(
-                    ColorTokens.onSecondary,
+                    Colors.white,
                   ),
                 ),
               )
@@ -71,7 +69,7 @@ class UFSecondaryButton extends StatelessWidget {
                   ],
                   Text(
                     label,
-                    style: TypographyTokens.buttonLarge,
+                    style: AppTypography.actionText,
                   ),
                 ],
               ),