fix(room): preserve ACL roles and persist room topics

Allow unknown blank-password guests only when read-only access is enabled,
disable empty configured credentials, and preserve explicit ACL roles on
reconnect unless a valid admin password selects Admin.

Save room topics through verified, recoverable filesystem transactions. Deliver
topics after older unread posts with independent ACK state and bounded retries,
including clock correction and long-uptime timer handling.

Exercise production handlers and pinned unmodified app JavaScript in CI.
Document topic commands and login policy. Native tests (1829), fault-injection
and compatibility suites, Pico W, V4 Full, G2 Full, and RAK4631 Full/Reduced
build qualification passed. Hardware behavior remains untested for this change.

.github/workflows/run-unit-tests.yml

@@ -113,6 +113,11 @@ jobs:
           python3 -B test/test_companion_offline_delivery.py -v
           python3 -B test/test_companion_lfs_traversal.py -v
           python3 -B test/test_room_post_permissions.py -v
+          python3 -B test/test_room_login_authorization.py -v
+          python3 -B test/test_room_login_integration.py -v
+          python3 -B test/test_room_topic_store.py -v
+          python3 -B test/test_room_topic_delivery.py -v
+          python3 -B test/test_official_room_app_compatibility.py -v
           python3 -B test/test_contact_clock_bootstrap.py -v
           python3 -B test/test_rtc_discovery.py -v
           python3 -B test/test_radio_interrupt_recovery.py -v