feat(drivers): add doubao_new driver

[Elegant1E]

Description / 描述

从 Alist 移植了 doubao_new 驱动

Motivation and Context / 背景

原有的豆包驱动疑似API迁移，无法获得新API后的所有操作更新，也无法进行操作。

这是我提出的issue：Closes #2079

这是续接旧的已关闭PR：Closes #2093

Closes #2236

How Has This Been Tested? / 测试

通过docker构建移植后的新版本后测试该驱动可以正常使用。

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
  • docs(doubao): update to doubao new OpenList-Docs#316

[Copilot]

Pull request overview

This PR ports and registers a new doubao_new storage driver to restore functionality after upstream Doubao/Feishu API migration, addressing the issues reported in #2079 and related PRs.

Changes:

• Added the new drivers/doubao_new implementation (auth/token handling, listing, linking/preview, upload, and basic file operations).
• Registered the driver via drivers/all.go so it’s included in the build.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
drivers/doubao_new/driver.go	Core driver implementation: list/link/preview, mkdir/move/rename/remove, upload workflow, storage details.
drivers/doubao_new/auth.go	DPoP generation/parsing, token refresh logic, encrypted keypair parsing, request auth header application.
drivers/doubao_new/util.go	Shared request/response helpers, pagination for listing, CSRF retry helpers, preview link helper.
drivers/doubao_new/upload.go	Upload prepare/block negotiation, merge-block upload, v3 fallback block upload, finish upload.
drivers/doubao_new/types.go	API response/request type definitions used across the driver.
drivers/doubao_new/meta.go	Driver config/registration and Addition fields.
drivers/all.go	Imports the new driver so it’s registered at runtime.

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[xrgzs]

已实现使用 Cookie 刷新 token

[jyxjjj]

为了防止被认定破解等风险，建议将部分常量作为可配置值。