- documents.py: fix root_version_id never being saved due to SQLAlchemy
deferring the circular FK (CvDocument↔CvVersion). Use flush-based approach:
flush doc, flush version, then set root_version_id before final commit.
- config.py: add validator to coerce empty MINIO_ENDPOINT string to None,
preventing boto3 ValueError: Invalid endpoint at startup.
- versions.py: catch PatchValidationError and return 422 instead of 500
when a patch violates ATS guard rules.
- api.ts: on 401, clear stale OIDC cookies and redirect to /login instead
of showing the "Failed to load documents" error.
https://claude.ai/code/session_01KKbzWYz8fLyG2qcwiDZ8fy
