"""Platform defaults (config.yaml ``extra`` / env fallbacks)."""

DEFAULT_HOST = "127.0.0.1"
DEFAULT_HTTP_PORT = 8791  # docs/19: HTTP is the only transport
DEFAULT_HOME_CHANNEL = "default"
DEFAULT_HOME_CHANNEL_NAME = "Default"
DEFAULT_PUSH_BACKEND = "ntfy"
DEFAULT_OUTBOX_RETENTION_HOURS = 72
DEFAULT_MAX_UPLOAD_BYTES = 100 * 1024 * 1024  # 100 MB


def _truthy(value: str | None) -> bool:
    return (value or "").strip().lower() in {"1", "true", "yes", "on"}