feat(artifacts): Evidence Graph — provenance + lineage on EvidenceRecord (CR-14)#33
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Promotes provenance/integrity to first-class fields (sourceProvider, producer, contentHash, classification [validated], retentionPolicyRef, immutable) and adds lineage edges references[] with a domain AddReference operation (non-empty, dedup) plus Seal — the adjacency that makes it a graph. contentHash is now a first-class field (CreateEvidenceRecordCommandHandler computes SHA-256 into it, keeping the legacy metadata copy). New POST /{id}/references command+endpoint; read model + DTO surface the 7 fields. Persistence: 7 new columns + classification index + additive migration AddEvidenceGraphFields (all NOT NULL with defaults / jsonb '[]', so existing rows stay valid). Build Release -warnaserror 0 warnings; 443→458 tests. Marks CR-14 DONE in the gap board + catalog.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Turns
EvidenceRecordinto an Evidence Graph node.references[]with domainAddReference(non-empty, dedup) +Seal; newPOST /{id}/references.AddEvidenceGraphFields.Build Release
-warnaserror0 warnings; 443→458 tests. Closes CR-14.🤖 Generated with Claude Code