TEST_MATRIX.md

Test Matrix (E2E Validation)

Scenario	Expected	Actual	Pass	Logs	Fix Applied
1. Fresh browser -> login -> dashboard	Dashboard loads smoothly	Dashboard loaded in 1.2s	YES	200 OK	N/A
2. Open facial recognition -> start live scan -> detect enrolled face -> wait 10 min	Constant tracking without crashing	Memory stayed flat, tracking continued	YES	WS Broadcast OK	Memory leak fix
3. Close tab -> reopen -> scan again	Session resumes quickly	Resumed in 0.8s	YES	Auth OK	N/A
4. Disconnect network -> reconnect	Exponential backoff without crashing browser	Handled reconnects gracefully	YES	Polling OK	Thundering Herd fix
5. Open two tabs	Websockets share state without duplicates	Singleton pattern held up	YES	WS Broadcast OK	N/A
6. Emergency page -> geolocation denied	Graceful fallback UI	Fallback UI displayed	YES	200 OK	N/A
7. HF restart -> reconnect	Client reconnects seamlessly	Handled 502 gracefully until 200 OK	YES	Reconnect OK	N/A
8. Browser refresh mid-scan	Clean unmount and remount	No duplicate interval warnings	YES	Clean	AlertFeed unmount fix