- settings.py: pydantic-settings config for the two mount points
(MUSIC_DATA_DIR, ALEMBIC_CONFIG_DIR), OIDC client config, encryption key path
- db.py: SQLite engine with WAL mode, plain-SQL schema migration runner
(schema/*.sql, tracked by schema_version -- not the alembic migration tool)
- models.py: SQLAlchemy ORM models matching schema/0001_init.sql
- security/crypto.py: Fernet encrypt/decrypt for the secrets table
- security/oidc.py + routers/auth.py: Pocket ID OIDC login/callback/logout
- security/deps.py: require_auth dependency (redirect-to-login on no session)
- main.py: app factory, lifespan (init_db + beets WAL enable), session
middleware, minimal dashboard route
Verified boots end-to-end via TestClient: unauthenticated GET / redirects to
/auth/login, static files serve, and all 13 schema tables get created on
first run.