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/billing/services/admin_subscription_service.py

@@ -27,6 +27,7 @@ from app.modules.billing.models import (
     SubscriptionStatus,
     SubscriptionTier,
 )
+from app.modules.tenancy.exceptions import PlatformNotFoundException
 
 logger = logging.getLogger(__name__)
 
@@ -316,7 +317,7 @@ class AdminSubscriptionService:
         try:
             p = platform_service.get_platform_by_id(db, platform_id)
             return p.name
-        except Exception:
+        except PlatformNotFoundException:
             return None
 
     # =========================================================================