Replace all AsyncClient instantiations in test_sources.py and test_jobs.py
with the shared fixture from conftest.py. This ensures proper test
database isolation via dependency overrides.
- Remove imports of httpx AsyncClient, ASGITransport, and app
- Add client fixture parameter to all test functions
- Remove async with blocks around HTTP requests
- test_engine.py already uses db fixture correctly, no changes needed
- Use new session in background task for thread safety
- Fix schedule creation to associate with job
- Fix schedule endpoint return type
- Update tests to use AsyncClient
- Add missing tests for list, get, delete, schedule
- Add updated_at field to Schedule model
- Full CRUD for backup jobs
- Manual job trigger endpoint with background execution
- Schedule creation endpoint
- Tests for job creation, update, execution, and 404 cases
alex