feat(s3): support frontend direct upload

[KirCute]

Description / 描述

• 支持s3前端上传，没实现分片上传
• 修复quark_uc剩余空间显示问题
• 修改获取剩余空间超时跳过的实现方法

Motivation and Context / 背景

Closes #1629
Closes #1421

How Has This Been Tested? / 测试

没测自定义 Host，但应该没问题

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 #XXXX

[Copilot]

Pull Request Overview

This PR adds support for S3 frontend direct upload functionality and fixes the remaining space display issue for quark_uc driver. The implementation refactors timeout handling across multiple files by replacing sync.WaitGroup with channel-based timeout mechanisms.

Key Changes

• Implements S3 direct upload feature with configurable host support and presigned URL generation
• Fixes quark_uc remaining space calculation using the new DiskUsageFromUsedAndTotal utility function
• Refactors timeout handling in storage detail retrieval using channels instead of WaitGroups for better timeout control

Reviewed Changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
server/handles/storage.go	Refactored storage response generation to use channel-based timeout mechanism instead of WaitGroup
internal/op/storage.go	Updated storage details retrieval with goroutine-based timeout using channels
drivers/s3/util.go	Added client type constants and extended getClient to support direct upload host configuration
drivers/s3/meta.go	Added configuration fields for enabling direct upload and specifying direct upload host
drivers/s3/driver.go	Implemented GetDirectUploadTools and GetDirectUploadInfo methods for S3 direct upload support
drivers/quark_uc/driver.go	Fixed remaining space calculation using DiskUsageFromUsedAndTotal utility
drivers/onedrive/meta.go	Formatting adjustment for field alignment
drivers/alias/util.go	Refactored listRoot timeout handling to use channel-based mechanism

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