The delegated-caregiver settings forms were the last hand-rolled control
block: native <input>/<select> with a copied border literal, a native
type=date for the birth date (the browser-locale trap closed for the
owner surface in v1.25.4), module checkboxes where the owner section
shows switches, and a save button mid-form with the error line dropped
below it.
Route them through Input, NativeSelect, DateField, and Switch, and give
every form a shared footer that places the error line above the action
row and the action row last (§12). The Switch rows keep a hidden mirror
input so the FormData submit contract is unchanged. Extend the section
tests to hold the DateField primitive and the action-last order in place.