Release Radar v1.0.0

Release Radar v1.0.0

Release Radar now exposes the full sample release-review flow:

• Release records and readiness scoring.
• Audit-event migration and audit helper.
• Protected approval endpoint with bearer session checks.
• Customer-facing release brief with cited changes.

The release is intentionally small but realistic so Kinetik Triage can cite
public commits and pull requests while explaining release risk.