Type Alias CheckId

Validation check identifier.

Open string — profile registry validates at runtime which IDs are valid. This replaces the closed z.enum() to support extensible profiles:

• Profiles register their check IDs (e.g., "test_quality", "rollback_safety")
• Custom profiles can add any check ID (e.g., "sast_scan", "license_check")
• Runtime validation happens at hydrate time (profile registry) and at validation time (submitted check IDs must be in activeChecks)

Known base IDs (from baseline profile): "test_quality", "rollback_safety".