fix(torghut): add offline replay triage sidecar

[gregkonush]

Summary

• Adds a bounded offline_replay_triage sidecar for target-plan-exclusive paper-route runtime-window imports that are deferred because the target window is not closed or settlement grace is still pending.
• Marks the sidecar and all triage candidates as non-authoritative research only, with promotion_allowed: false, authority: non_authoritative_research_triage, and excluded_from_runtime_window_import_proof: true.
• Parses only explicit local artifact refs from selected targets for exact-replay ranking or handoff context, without adding sidecar candidates to authoritative imports or proof gates.
• Adds regression coverage for fallback skipping, deferred triage emission, unchanged proof authority, and import-ready paper-route behavior.

Related Issues

None

Testing

• cd services/torghut && PATH="$HOME/.local/bin:$PATH" uv run --frozen pytest tests/test_run_empirical_promotion_jobs.py -k 'runtime_window_target_plan_exclusive or offline_replay_triage' — passed, 7 passed / 49 deselected.
• cd services/torghut && PATH="$HOME/.local/bin:$PATH" uv run --frozen pytest tests/test_run_empirical_promotion_jobs.py — passed, 56 passed.
• cd services/torghut && PATH="$HOME/.local/bin:$PATH" uv run --with ruff ruff check scripts/renew_latest_empirical_promotion_jobs.py tests/test_run_empirical_promotion_jobs.py — passed.
• cd services/torghut && PATH="$HOME/.local/bin:$PATH" uv run --with ruff ruff format --check scripts/renew_latest_empirical_promotion_jobs.py tests/test_run_empirical_promotion_jobs.py — passed.
• cd services/torghut && PATH="$HOME/.local/bin:$PATH" uv run --with coverage python scripts/check_diff_coverage.py --coverage-xml coverage.xml --threshold 90 — passed after local coverage generation, 149/149 changed renewal-script lines covered.

Screenshots (if applicable)

N/A

Breaking Changes

None

Checklist

• Testing section documents the exact validation performed.
• Screenshots and Breaking Changes sections are handled appropriately.
• Documentation, release notes, and follow-ups are updated or tracked.