refactor(drivers/wps): remove resolveCache

[xrgzs]

Description / 描述

• 移除 resolveNode 驱动自带缓存，改为类型断言实现
• 更改代码布局
• 避免用户错误输入多行字符串
• 增加启动时创建 resty client，避免使用默认 client 出现“串号”问题
• 增加自定义UA功能，并默认使用OpenList UA，避免登录出现 go 默认 UA
• 重构账号类型检测，经过测试，一个 Session 只能同时对应一个账号

Motivation and Context / 背景

How Has This Been Tested? / 测试

实测WPS365商业版，WPS个人版可正常上传、复制、新建文件夹，说明类型断言实现没问题。

Checklist / 检查清单

• I have read the CONTRIBUTING document.
  我已阅读 CONTRIBUTING 文档。
• I have formatted my code with go fmt or prettier.
  我已使用 go fmt 或 prettier 格式化提交的代码。
• I have added appropriate labels to this PR (or mentioned needed labels in the description if lacking permissions).
  我已为此 PR 添加了适当的标签（如无权限或需要的标签不存在，请在描述中说明，管理员将后续处理）。
• I have requested review from relevant code authors using the "Request review" feature when applicable.
  我已在适当情况下使用"Request review"功能请求相关代码作者进行审查。
• I have updated the repository accordingly (If it’s needed).
  我已相应更新了相关仓库（若适用）。
  • OpenList-Frontend #XXXX
  • OpenList-Docs docs(wps): add wps docs OpenList-Docs#330

[Copilot]

Pull request overview

Refactors the WPS driver to remove the old path-resolution cache and instead rely on driver-specific object metadata (IDs/kinds), while also improving HTTP client isolation and request headers (UA).

Changes:

• Removed resolveCache/resolvePath-based workflow and moved to object-type assertions with richer Obj metadata.
• Added per-driver resty.Client initialization on startup and login-state detection via islogin.
• Extracted upload logic into a dedicated put.go and added configurable/custom User-Agent support.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
drivers/wps/util.go	Reworked endpoints, UA handling, request creation, and group fetching to rely on login state + per-driver client.
drivers/wps/types.go	Introduced loginState, moved API response types, and redesigned Obj to embed model.Obj plus driver metadata.
drivers/wps/put.go	New file containing upload implementation (hashing, create/commit, multipart/stream handling).
drivers/wps/meta.go	Updated driver addition fields (default mode, custom UA, tag metadata changes).
drivers/wps/driver.go	Rebuilt core driver methods (List/Link/CRUD/GetDetails) to use the new object model and initialized resty client + login state in Init.

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