Rename diff-viewer package to webviews and pin TanStack Router - #5426

Bugbot Analysis Progress (56s elapsed)

✅ Gathered PR context (4s)
✅ Completed bug detection (50s)
✅ Posted analysis results (3s)

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

Request ID: serverGenReqId_5a19c27b-6b38-43a9-b9e0-39d8806774ef