perf(web): dedupe terminal mouse motion reports - #7845

Bugbot Analysis Progress (6m 51s elapsed)

✅ Gathered PR context (9s)
✅ Completed bug detection (6m 42s)
✅ Posted analysis results (1s)

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

Request ID: serverGenReqId_36941911-9614-4f60-be06-b23d5eb74701