POST /mqtt/auth/acl now handles "app_<uid>" users:
- topic must be exactly vesper/{serial}/<a>/<b> with serial in the user's
device_serials (resolved by the users doc `uid` field),
- publish (acc 2): only control/command,
- subscribe (acc 4) and read/delivery (acc 1): only control/ack,
status/heartbeat, status/playback,
- wildcard topics (+ / #) are denied,
- clientid must start with "app_<uid>_" so one user cannot reuse another
user's client id to kick them off,
- blocked users are denied; anything else (incl. other acc values) is 403.
Lookups go through mqtt/app_users.py's 60s TTL cache so per-message
checks don't hit Firestore every time; assign/unassign/block invalidate it.
Also fixes the acc comment: mosquitto passes 1 = read (delivery),
2 = write (publish), 4 = subscribe - not "1 = subscribe, 3 = both".
Device/kiosk ACL is unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
bonaminandClaude Opus 5.5
1253ec155e