[cschanhniem]

Summary

• add chain_of_custody.json and MANIFEST.json to lab batch pack zips
• hash panel.csv, ordered candidate identities, per-candidate sequences, and evidence certificates
• add --verify-pack integrity check plus tamper-detection tests
• sync Phase 4 roadmap/docs to v0.5.65

Verification

• python3 -m pytest tests/test_lab_batch_pack.py tests/test_docs_consistent.py -q
• ruff check scripts/build_lab_batch_pack.py tests/test_lab_batch_pack.py tests/test_docs_consistent.py
• git diff --check
• python3 -m pytest -q
• pre-push pytest -q

Claim boundary

Hashes verify archive identity only. They do not verify synthesis, biological activity, safety, or experimental provenance after receipt.