Add standalone document mutation functions - #10

Bugbot Analysis Progress (3m 29s elapsed)

✅ Gathered PR context (6s)
✅ Completed bug detection (3m 21s)
✅ Posted analysis results (1s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_91c5b315-1840-4a6f-92bd-80e821ab7e76