- Add backend/celery_app.py: Celery("docuvault") with Redis broker, JSON
serialization, and tasks.document_tasks.* routed to documents queue;
reads REDIS_URL directly from os.environ (no config import — Pitfall 7)
- Add backend/tasks/__init__.py: empty package marker
- Add backend/tasks/document_tasks.py: sync extract_and_classify Celery task
that calls asyncio.run(_run()) to retrieve bytes from MinIO, extract text
via extractor, and classify via classifier; classification failure is non-fatal
- Update backend/services/classifier.py: classify_document and
suggest_topics_for_document now accept session: AsyncSession as first arg;
all storage.* calls updated to async session-injection pattern
- Add extract_text_from_bytes helper to services/extractor.py for bytes-based
extraction (used by Celery worker, which retrieves bytes from MinIO)
- backend/alembic.ini: script_location=migrations, sqlalchemy.url=%(DATABASE_MIGRATE_URL)s
- backend/migrations/env.py: async_engine_from_config + Base.metadata wiring;
runtime os.environ.get("DATABASE_MIGRATE_URL") injection (alembic.ini interpolation
does not read OS env directly)
- backend/migrations/versions/0001_initial_schema.py: creates all 11 tables in
dependency order with correct FKs, indexes, and named constraints
- documents.user_id is nullable=True per D-03; Phase 2 adds NOT NULL
- Ends with GRANT + ALTER DEFAULT PRIVILEGES for docuvault_app (Pitfall 4)
- Also grants USAGE/SELECT on sequences (audit_log.id autoincrement)
- downgrade() drops all tables in reverse dependency order
- Add @pytest_asyncio.fixture db_session: in-memory SQLite via aiosqlite,
expire_on_commit=False, skips gracefully (ImportError) before Plan 03
- Add @pytest_asyncio.fixture async_client: httpx.AsyncClient with
ASGITransport, overrides deps.db.get_db, skips before Plan 03
- Retain all legacy sync fixtures (isolated_data_dir, client, sample_txt,
sample_pdf) unchanged for backward compatibility through Plan 04
curo1305