- NotifyNewFindings sends to all subscribers on scan completion with findings
- NotifyFinding sends real-time individual finding notifications (always masked)
- formatNotification/formatErrorNotification/formatFindingNotification helpers
- Zero findings = no notification; errors get separate error format
- Per-subscriber error handling: log and continue on individual send failures
- 6 tests pass: subscribe DB round-trip, no-subscriber no-op, zero-finding skip,
message format validation, error format, masked key enforcement
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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