- test_alert: remove stale _MAX_ANNOUNCE import/test, update _errors
assertions for per-backend dict, fix announcement checks (action vs
send), mock _fetch_og_batch in seeding tests, fix YouTube/SearX mock
targets (urllib.request.urlopen), include keyword in fake data titles
- test_chanmgmt: add _FakeState to _FakeBot (on_invite now persists)
- test_integration: update help assertion for new output format
696 tests pass, 0 failures.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
