Cover telemetry replay gap fixtures

[hyeokjun32]

Summary

• Add regression coverage for baseline/candidate execution sequence inversion context.
• Add CLI replay smoke for compared candidate missing runtime telemetry.
• Document that replay gaps and sequence inversions are preserved as evidence context, not comparability or monitoring behavior.

Validation

• python -m pytest -q tests/test_regression.py::test_regression_preserves_replay_sequence_order_mismatch_context tests/test_regression.py::test_cli_telemetry_replay_candidate_gap_to_regression_smoke
• python -m pytest -q
• git diff --check