Interface QuickButton

ui/src/components/extensions/SerialConsole.tsx:29–35

============== Types ==============

/** ============== Types ============== */
interface QuickButton {
  id: string; // uuid-ish
  label: string; // shown on the button
  command: string; // raw command to send (without auto-terminator)
  terminator: { label: string; value: string }; // None/CR/LF/CRLF/LFCR
  sort: number; // for stable ordering
}

interface SerialSettings {
  baudRate: number;