generated from coulomb/repo-seed
tegwick
9cbb9847ed
Adds the manifest layer per ADR-0003. The canonical wire format is CBOR with deterministic encoding (cbor2 canonical=True: definite-length, shortest-form integers, sorted map keys); JCS (RFC 8785) is the JSON projection. src/artifactstore/manifest/: - model.py: frozen dataclasses for Manifest (manifest_version=1, package, files, storage_receipts, retention_summary, provenance) with restricted types (str/int/bool/None/list/dict) so CBOR and JCS round-trip losslessly. - codec.py: encode (Manifest -> canonical CBOR bytes) and decode (CBOR bytes -> Manifest) via cbor2. - projection.py: jcs_projection (Manifest -> RFC 8785 canonical JSON) plus cbor_from_jcs for cross-format round-trip verification. - digest.py: manifest_digest returns the BLAKE3 content address of the manifest's canonical CBOR bytes (ADR-0001). - __init__.py: re-exports the public surface. tests/unit/test_manifest.py: - decode(encode(m)) == m round-trip (hypothesis-parameterised). - JCS↔CBOR round-trip: encode(decode(cbor_from_jcs(jcs(m)))) == encode(m). - Byte stability of the canonical CBOR encoder across calls. - manifest_digest matches independent BLAKE3 over encode(m). - Decode rejects non-map CBOR. - JCS projection sorts keys lexicographically. Deps: jcs added to project requirements; mypy override for the jcs package (no stubs published yet). Gates: ruff clean, mypy --strict clean on 26 files, 26 tests pass. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>