fix: Add missing uuid import

- Fixes 'name uuid is not defined' error in pipeline creation
- uuid module needed by _create_pipeline_record function
- Resolves pipeline generation failures

api_routes_v2.py

@@ -9,6 +9,7 @@ import os
 from datetime import datetime
 from urllib.parse import urlparse
 import tempfile
+import uuid
 
 # AWS S3 (server-side access, no presigned URLs)
 import boto3