DWH schema - #187
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Cover independent database identities, migration upgrades, and concurrent initialization so source-instance metadata remains valid and converges on one persisted value. Add hook-runtime coverage proving baseline-only databases fail with setup guidance without applying migrations, using a test-only migration fixture seam. Plan: stable-agent-trace-source-instance-identity (T03) Co-authored-by: SCE <sce@crocoder.dev>
…tity contract Introduce a separate append-oriented Agent Trace DWH destination schema for a future ETL consumer, distinct from the repository-scoped agent-trace.db source schema. Add the 001_dwh_schema baseline creating repositories, source_instances, etl_watermarks, messages, message_parts, agent_traces, and code_changes with no foreign keys so out-of-order and cross-source-database ingestion is never blocked. Add AgentTraceDwhDb = TursoDb<AgentTraceDwhDbSpec> as an explicit-path adapter reusing the agent_trace_db retry key, with a readiness check but no lifecycle, doctor, setup, or CLI wiring yet. Deterministic logical identities (messages, agent_traces) exclude source_instance_id for cross-source idempotency; raw local source row IDs (message_parts, code_changes) are scoped per source instance so the same local integer coexists across sources and repositories. Document the source-versus-DWH boundary, identity contract, and shared Turso consumer in architecture, context-map, glossary, and a focused agent-trace-dwh-db.md context entry. Plan: agent-trace-dwh-schema-identity-contract (T01, T02) Co-authored-by: SCE <sce@crocoder.dev>
Record the separate append-oriented DWH destination boundary and distinguish deterministic logical identities from source-instance-scoped local row IDs. Update durable architecture links and mark the completed plan tasks so future ETL work can preserve idempotent re-ingestion without coupling live capture to warehouse concerns.\n\nPlan: agent-trace-dwh-schema-identity-contract\nTasks: T01, T02 Co-authored-by: SCE <sce@crocoder.dev>
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