Adolfo Delorenzo 30b9f60668 feat(02-02): audit model, KB model, migration, and audit logger ...

- AuditEvent ORM model with tenant_id, action_type, latency_ms, metadata
- KnowledgeBaseDocument and KBChunk ORM models for vector KB
- Migration 003: audit_events (immutable via REVOKE), kb_documents, kb_chunks
  with HNSW index and RLS on all tables
- AuditLogger with log_llm_call, log_tool_call, log_escalation methods
- audit_events immutability enforced at DB level (UPDATE/DELETE rejected)
- [Rule 1 - Bug] Fixed CAST(:metadata AS jsonb) for asyncpg compatibility

2026-03-23 14:50:51 -06:00

7.8 KiB

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