Tests, Docs, Observability & Rollout #968
Description
Provide tests, operator docs, and telemetry for audit writes and migration runs.
Acceptance Criteria
- Unit + integration tests exist and pass.
- Docs updated with CLI usage and required first-line format.
- Telemetry/logging for audit writes and migration success/failure.
Minimal implementation
- Add tests, docs snippets, logging hooks, and feature flag rollout plan.