fix(arch): resolve all 14 architecture validation warnings

- Add missing module dependency declarations (IMPORT-002): analytics
  requires catalog/inventory/marketplace/orders, orders requires
  marketplace, inventory requires orders
- Replace broad except Exception with specific types (EXC-003):
  StoreNotFoundException in auth_service, PlatformNotFoundException in
  admin_subscription_service, SQLAlchemyError in customer_service
- Use number_stepper macro in loyalty program-edit template (FE-008)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/modules/analytics/definition.py

@@ -101,6 +101,7 @@ analytics_module = ModuleDefinition(
             ),
         ],
     },
+    requires=["catalog", "inventory", "marketplace", "orders"],  # Imports from these modules
     is_core=False,
     # =========================================================================
     # Self-Contained Module Configuration