evidence(OMN-12444): add deploy readiness receipt

[jonahgabriel]

Summary

• add OMN-12444 deploy-readiness DoD evidence for runtime path deploy gate
• record the post-merge stability deploy smoke command without claiming a pre-merge live deploy
• resync OMN-12444 receipt contract hashes

Verification

• uv run validate-yaml contracts/OMN-12444.yaml
• uv run python - <<'PY'
  from pathlib import Path
  import yaml
  for p in [Path('contracts/OMN-12444.yaml'), Path('drift/dod_receipts/OMN-12444').glob('/command.yaml')]:
  yaml.safe_load(p.read_text())
  print('yaml parse ok')
  PY
• git diff --check

Evidence-Ticket: OMN-12444
Evidence-Source: OCC self

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2ab650b5-ed9f-4194-9b2f-122799a7974a

📥 Commits

Reviewing files that changed from the base of the PR and between 93f46ca and b938db0.

📒 Files selected for processing (7)

• contracts/OMN-12444.yaml
• drift/dod_receipts/OMN-12444/dod-deploy-readiness/command.yaml
• drift/dod_receipts/OMN-12444/dod-focused-tests/command.yaml
• drift/dod_receipts/OMN-12444/dod-infra-pr-1794-open/command.yaml
• drift/dod_receipts/OMN-12444/dod-occ-pr-1893/command.yaml
• drift/dod_receipts/OMN-12444/dod-runtime-image-tools/command.yaml
• drift/dod_receipts/OMN-12444/dod-stability-session-health-env/command.yaml

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch jonah/omn-12444-deploy-gate-evidence

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