# Document Transcription System Overview (Current Baseline: V6.1)

This directory is the single source of truth for current V6.1 behavior and architecture.

## Canonical Reading Order

1. [System Architecture](architecture.md) for runtime topology, boundaries, and lifecycle ownership.
2. [System Requirements](requirements.md) for verifiable current-state requirements.
3. [Data Model](schema.md) for entities, constraints, and evidence persistence rules.
4. [Error Handling Policy](error_handling.md) for category, translation, and retry behavior.

## Cross-Version Invariants

- [Historical Document Transcription Design Intent](./invariant/intent.md)
- [Transcription Methodology](./invariant/transcription_methodology.md)
- [Error Handling](./invariant/error_handling.md)
- [Digital Evidence and AI Processing Provenance](./invariant/ai_evidence_and_provenance.md)
- [UI Style Guide](./invariant/ui_style_guide.md)

## Deployment and Operations

- [Production Runbook](production-runbook.md) for deploy, rollback, and recovery.
- [Backup and Restore](backup_restore.md) for backup configuration and restore procedure.
- [Data Migration](data_migration.md) for the SQLite to PostgreSQL migration path.
- [Cloudflare Tunnel and Access](cloudflare_tunnel_access.md) for remote exposure and access control.

## Baseline Statement

The current V6.1 baseline includes the architectural cleanup, person-schema redesign,
containerized PostgreSQL deployment, and the navigation, Document Detail, and worker-backed
maintenance refinements reflected across this canonical document set.
Use this `docs/*` canonical set for active design and implementation decisions.

Every canonical document above states this same baseline; `tests/test_meta_contract_guards.py`
fails if one of them falls behind. Forward-looking work is tracked in
[`roadmap_plan.md`](roadmap_plan.md) and is not part of the baseline.