A single stored credential value with timestamps.

A credential group: authorisation metadata plus credential key/value pairs.

extra="ignore" keeps the schema forward-compatible within each version — future minor additions to the file format will not cause validation failures.

credentials stores raw dicts so that individual entries can be validated lazily (per-entry) without failing the entire group load.

Top-level credential store model.

extra="ignore" keeps the schema forward-compatible within each version.