chore: project cleanup and Vite+ agent docs

[chensid]

Summary

• Vite+ 工具链文档: AGENTS.md 新增 Vite+ 章节，涵盖关键规则、配置方式、CI 集成（基于官方 vite-plus AGENTS.md）
• 去重精简: 移除 AGENTS.md 中与 CLAUDE.md 重复的内容（核心设计模式、变更流程），改为引用链接
• 依赖治理: 移除冗余 pnpm overrides，将 vite-plus 从 latest 固定为 ^0.1.14
• 版本升级: bump 至 1.0.7
• 仓库清理: 移除 .cursor 目录并加入 .gitignore

Test plan

• vp check 通过（pre-commit hook 已验证）
• CI 流水线通过

🤖 Generated with Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (1a4c10c) to head (60adec4).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #332   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            9         9           
  Lines          406       406           
  Branches        99        98    -1     
=========================================
  Hits           406       406           

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