This PR adds SDK support for publishing Lark/Feishu documents externally. It wraps the public permission and password APIs, and exposes a high-level LarkApp.prototype.publishFile() helper for common sharing flows.

• Drive permission API wrappers

  • add typed wrappers for updating public document permissions (resolve MobX-Lark 支持对外分享文档 #35)
  • add typed wrapper for enabling a public access password
  • model the relevant public-permission request/response payloads in src/module/Drive/type.ts

• High-level publish helper

  • add LarkApp.prototype.publishFile(URI, enablePassword = false, editable = false)
  • resolve the input URI into document type/token
  • enable external access and set link sharing to:
    • anyone_readable by default
    • anyone_editable when editable = true
  • optionally create and return a password when enablePassword = true

• Type surface

  • export the new public permission and publish result types through the existing module exports
  • return a structured publish result containing updated permission state and optional password

const result = await larkApp.publishFile(
    'https://example.feishu.cn/docx/xxxx',
    true,
    false
);

// result.password -> generated share password
// result.permissionPublic -> updated public permission state