Present for checkbox fields. unknown is what a no_answer checkbox carries.
Only citations whose quote was proven present in what the agent was actually shown.
Everything that went wrong short of failing the field. Also aggregated onto the run.
The failure, when status is error. Null otherwise.
Present for sub-field fields. An exclusive group resolves to exactly one "true".
The v1-compatible persisted string: the text value, "true" / "false" for a checkbox, or null
when nothing was answered. Null is deliberate — never the literal string "N/A".
One field's resolved answer — the unit PR7 persists (incrementally, as fields complete).