Storage

Store	Holds	Classification
PostgreSQL	Sessions, events, records, document metadata/versions/chunks, jobs	Canonical structured state
pgvector	Extension available for vector capability	Infrastructure support; current ranking remains application cosine
Artifact filesystem	Original and normalized document files	Canonical portable source artifacts
Secret file	Runtime configuration and credentials	Server-side only, mode 0600
Backup archive	Database dump, artifacts, deployment metadata	Recovery artifact
Git	Code, migrations, tests, templates, evidence, documentation	Canonical project source/history

The worker does not own irreplaceable state. Its jobs are persisted and bounded so that restart behavior can be observed and retried safely.