Added extensive tests for default-permissive access control, read/write follow whitelists, and privileged-only fields. Updated policy documentation with new configuration examples, access control reference, and logging details.
Introduce tests to validate functionality for new policy fields, including `max_expiry_duration`, `protected_required`, `identifier_regex`, and `follows_whitelist_admins`. Also, cover combinations of new and existing fields to ensure compatibility and precedence rules are correctly enforced.
bump to v0.31.2
