refactor: 调整导入路径为相对路径 (UI包整合阶段3)
- 修复 app.tsx 和各页面的导入路径
- 移除对 yongren-* 和 mini-enterprise-auth-ui 包的依赖
- 使用相对路径导入本地组件和 hooks
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Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>