Function isWritableDir

apps/desktop/src/main/cli-install.ts:139–148

(dir: string)

}

async function isWritableDir(dir: string): Promise<boolean> {
  try {
    const st = await fsp.stat(dir)
    if (!st.isDirectory()) return false
    await fsp.access(dir, fs.constants.W_OK)
    return true
  } catch {
    return false
  }
}

interface InstallTarget {
  /** Absolute path to <dir>/zn — where the symlink would land. */