fix: resolve all 19 architecture validator warnings

- API-004: Add noqa for factory-pattern auth in user_account routes and payments admin
- MDL-003: Add from_attributes to MerchantStoreDetailResponse schema
- EXC-003: Suppress broad except in merchant_store_service and admin_subscription_service
  (intentional fallbacks for optional billing module)
- NAM-002: Rename onboarding files to *_service.py suffix and update all imports
- JS-001: Add file-level noqa for dev-toolbar.js (console interceptor by design)
- JS-005: Add init guards to dashboard.js and customer-detail.js
- IMPORT-004: Break circular deps by removing orders from inventory requires and
  marketplace from orders requires; add IMPORT-002 suppression for lazy cross-imports
- MOD-025: Remove unused OnboardingAlreadyCompletedException

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

app/modules/tenancy/routes/api/user_account.py

@@ -37,7 +37,7 @@ def create_account_router(auth_dependency: Callable) -> APIRouter:
         """Get the logged-in user's account info."""
         return user_account_service.get_account(db, current_user.id)
 
-    @router.put("", response_model=UserAccountResponse)
+    @router.put("", response_model=UserAccountResponse)  # noqa: API-004
     async def update_my_account(
         update_data: UserAccountUpdate,
         current_user: UserContext = Depends(auth_dependency),
@@ -50,7 +50,7 @@ def create_account_router(auth_dependency: Callable) -> APIRouter:
         db.commit()
         return result
 
-    @router.put("/password", response_model=PasswordChangeResponse)
+    @router.put("/password", response_model=PasswordChangeResponse)  # noqa: API-004
     async def change_my_password(
         password_data: UserPasswordChange,
         current_user: UserContext = Depends(auth_dependency),