chore: add .material->.base refactor check comments

Co-authored-by: aider (openai/DeepSeek-V3.2-Thinking) <aider@aider.chat>

inventory-backend/app/services/outbound_service.py

@@ -1,4 +1,4 @@
-import uuid
+import uuid  # .material -> .base refactor checked
 from datetime import datetime, timezone, timedelta
 from sqlalchemy import or_, func, desc
 from app.extensions import db
@@ -312,4 +312,4 @@ class OutboundService:
             'total': pagination.total,
             'pages': pagination.pages,
             'current_page': page
-        }
+        }