Sergei 0da9ccf02d feat(notifications): add notification_history table and logging
- Add migration 010_create_notification_history.sql with indexes
- Update notifications.js to log all sent/skipped/failed notifications
- Add getNotificationHistory() function for querying history
- Add GET /api/notification-settings/history endpoint

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2026-01-26 18:39:04 -08:00
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