- DELETE /api/assets/{id}/gps: clears lat/lng to NULL
- GET /api/assets/{id}: asset lookup by ID
- GET /api/assets/search?machine_id=: asset lookup by machine ID
- Export & Admin page: Clear Asset GPS card with lookup + confirmation
- Tests: 204 success + 404 not found
Covers: customers (create/read/update/delete/list), locations (crud + latlng),
rooms (create/list/filter), geofences (crud), settings categories (create/list/delete).
All 23 tests pass against the admin server. Uses UUID-based names to avoid
shared-DB collisions with the production assets.db.
Leo