Preserve runtime telemetry coverage context

[hyeokjun32]

Summary

• preserve Runtime telemetry coverage metadata in EdgeEnv history inspection
• attach result/history telemetry coverage to regression context as supplemental evidence
• document coverage gaps as evidence quality metadata, not regression/comparability gates

Tests

• python -m pytest tests/test_runtime_telemetry_history.py tests/test_regression.py -q
• python -m pytest tests/test_cli.py tests/test_runtime_intelligence_lab_handoff.py -q
• python -m pytest -q