Check I - Authoring Planning Readiness

Verdict: AUTHORING_PLANNING_NEEDS_T1_FIX

The blueprint's package boundaries and phase order remain usable, and no runtime design amendment is open. Implementation-authoring planning cannot be approved until Codex can produce a complete deterministic seal and verify the immutable anchor.

Required next phase: T1 narrow envelope-contract patch, followed by focused Codex recheck/sealing. Production implementation remains unauthorized.