Replace all instances of request.headers.get("X-Forwarded-For") in
cloud.py (connect_webdav, delete_connection) and documents.py (upload,
confirm, delete) with get_client_ip(request) from deps.utils. Add
get_client_ip import to both files. Prevents XFF spoofing in audit logs.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>