- TestSubscribeUnsubscribe: DB round-trip for add/remove subscriber
- TestNotifyNewFindings_NoSubscribers: zero messages with empty table
- TestNotifyNewFindings_ZeroFindings: no notification for 0 findings
- TestFormatNotification: message contains job name, count, duration
- TestFormatFindingNotification: masked key, never full key
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
