- refactor: move HTTP status and DTO concerns out of model and service
layers into API and handler code.
- feat: add admin service boundary and route auth through services
instead of direct repository access.
- test: add architecture and error tests covering package boundaries,
redaction, and service behavior.
- docs: record the protocol-neutral boundary decision and update
architecture and roadmap notes.
- Add GORM dependencies for SQLite and PostgreSQL
- Create domain models (User, Session, File) with common errors
- Implement repository interfaces and database layer with migrations
- Update WebApp to bootstrap with database and repositories
- Add comprehensive unit tests for repository methods
- Update config structure to support multiple database drivers
- Extend AGENTS.md with debugging principles and dependency rules