ReadonlydefaultDefault (schema) value.
Readonlymodifiedtrue when the requested scope explicitly overrides the value, i.e. a reset is meaningful.
ReadonlyscopeValue explicitly set in the requested scope; undefined means the value is inherited or default.
ReadonlyvalueEffective value resolved for the requested scope (falling back through broader scopes and the default).
The value of a single preference as seen from a particular AiConfigurationScope, together with the information the AiSettingsRow needs to render the modified indicator and the reset affordance.