browser: non-permanent discard blockers + one shared discard event center - #7625

Bugbot Analysis Progress (1m 51s elapsed)

✅ Gathered PR context (6s)
✅ Completed bug detection (1m 45s)
✅ Posted analysis results (1s)

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

Request ID: serverGenReqId_60e24ab2-27d0-4be2-ab3e-8dfd683e2de0