feat: Version 3.5.2 - Configuration Stripe et gestion des immeubles

- Configuration complète Stripe pour les 3 environnements (DEV/REC/PROD)
  * DEV: Clés TEST Pierre (mode test)
  * REC: Clés TEST Client (mode test)
  * PROD: Clés LIVE Client (mode live)
- Ajout de la gestion des bases de données immeubles/bâtiments
  * Configuration buildings_database pour DEV/REC/PROD
  * Service BuildingService pour enrichissement des adresses
- Optimisations pages et améliorations ergonomie
- Mises à jour des dépendances Composer
- Nettoyage des fichiers obsolètes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/lib/presentation/widgets/loading_spin_overlay.dart

@@ -19,7 +19,7 @@ class LoadingSpinOverlay extends StatefulWidget {
     this.spinnerColor = Colors.blue,
     this.textColor = Colors.white,
     this.blurAmount = 8.0,
-    this.spinnerSize = 50.0,
+    this.spinnerSize = 64.0,
     this.showCard = true,
   });
 
@@ -95,11 +95,11 @@ class _LoadingSpinOverlayState extends State<LoadingSpinOverlay>
           maxWidth: 280,
         ),
         decoration: BoxDecoration(
-          color: Colors.white.withValues(alpha: 0.92), // Semi-transparent
+          color: Colors.white.withOpacity(0.92), // Semi-transparent
           borderRadius: BorderRadius.circular(20),
           boxShadow: [
             BoxShadow(
-              color: Colors.black.withValues(alpha: 0.15),
+              color: Colors.black.withOpacity(0.15),
               blurRadius: 20,
               spreadRadius: 2,
               offset: const Offset(0, 8),
@@ -114,7 +114,7 @@ class _LoadingSpinOverlayState extends State<LoadingSpinOverlay>
               width: widget.spinnerSize,
               height: widget.spinnerSize,
               child: CircularProgressIndicator(
-                strokeWidth: 3,
+                strokeWidth: 4.5,
                 valueColor: AlwaysStoppedAnimation<Color>(widget.spinnerColor),
               ),
             ),
@@ -145,7 +145,7 @@ class _LoadingSpinOverlayState extends State<LoadingSpinOverlay>
           width: widget.spinnerSize,
           height: widget.spinnerSize,
           child: CircularProgressIndicator(
-            strokeWidth: 3,
+            strokeWidth: 4.5,
             valueColor: AlwaysStoppedAnimation<Color>(widget.spinnerColor),
           ),
         ),