{
  "schema_version": 1,
  "firebase_project_id": "epaper-prod-2026",
  "firebase_api_key": "AIzaSyXXXXXX...",
  "firestore_url": "https://firestore.googleapis.com/v1/projects/epaper-prod-2026/databases/(default)/documents/devices/",
  "sleep_duration_seconds": 3600
}