1. Open site and confirm login appears immediately.
2. Tap Dispatcher, confirm PIN pad appears.
3. Enter 1111, confirm dashboard loads.
4. Open Jobs, search for “TV” and confirm Johnson Estate remains visible.
5. Open a job, change status, add a note, and confirm the timeline updates without breaking navigation.
6. Sign out, log back in as Technician with 2222.
7. Switch each nav tab and confirm no blank page.