Update app.py

app.py

@@ -281,7 +281,7 @@ class DisplayService:
     @staticmethod
     def show_solution_packages(state: ConversationState) -> str:
         """Show solution packages in a structured format"""
-        specs_map = state.specs_advantages
+        specs_map = state.solution_packages
 
         if not specs_map:
             return "📦 **Gói sản phẩm**\n\nKhông có gói sản phẩm nào"