Function parseBooleanEnv

src/runtime/config.ts:115–128

(value: string | undefined)

  return trimmed || undefined;
}

function parseBooleanEnv(value: string | undefined): boolean | undefined {
  if (value === undefined) {
    return undefined;
  }

  const normalized = value.trim().toLowerCase();
  if (TRUE_ENV_VALUES.has(normalized)) {
    return true;
  }
  if (FALSE_ENV_VALUES.has(normalized)) {
    return false;
  }
  return undefined;
}

function normalizeFeishuAdapterConfig(