Stopgap for the total-load-failure variant of
home-assistant/frontend#52986:
on older gen1 Shelly Wall Displays (e.g. SAWD-0A1XX10EU1, Unisoc SC7731E,
ES5 WebView) the HA 2026.7 frontend bundle never executes — no websocket is
ever established, the dashboard is blank/stale, taps do nothing. A www CSS
override can't help, because the frontend never runs to apply it.
This serves the last known-good frontend to just that one device while every