fix: heartbeat sessions are normal sessions — idle display and normal residency with durable wake - #1967

Bugbot Analysis Progress (1m 27s elapsed)

✅ Gathered PR context (5s)
✅ Completed bug detection (1m 21s)
✅ Posted analysis results (1s)

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

Request ID: serverGenReqId_a742f7cf-9fcb-40f8-8f7d-15427f412a7e