// Globals from the CONFIG block in index.html.
declare const APP_NAME: string
declare const APP_SUBTITLE: string
declare const LOGO_SRC: string
declare const STEPS: string[]
declare const REPORT_COLUMNS: { key: string; label: string }[]
declare const API_BASE: string

interface Window {
  /** Contract entry point: one {event, data} envelope as JSON (desktop hosts, tests). */
  __pyMsg: (json: string) => void
}