CheckboxTileSchema

Renders a bare Material 3 Checkbox reflecting checked. enabled is forwarded to the composable. The tile draws only the box — no label is rendered, so pair it with a SimpleText inside a Row when a caption is needed.

Selection: toggling the checkbox dispatches a local CheckboxTileEvents.OnCheckChanged that the holder applies to its own state, so the new value survives without a round trip to the server.

Triggers dispatched (in this order, on every toggle):

• OnCheckEventTrigger — when the box becomes checked.

• OnUncheckEventTrigger — when the box becomes unchecked.

• OnCheckChangedEventTrigger — always, right after one of the two above.

Value production: the holder exposes the current checked boolean under a caller-chosen key, so GetData / EvaluateData events can read this checkbox by its id.