崔宝新
586c75f841
本次提交完成了班级模块的多项核心功能开发与优化： 1. 新增DELETE请求封装，支持业务删除接口且不自动重试 2. 完善UserPostCommonDto模型，新增头像字段适配详情接口 3. 重构路由架构，使用StatefulShellRoute实现Tab页面保活 4. 新增我的互动页面，包含我的动态/点赞/留言三个子页 5. 新增全部同学页面，展示班级全员信息与在线状态 6. 新增动态详情页面，支持查看完整评论与点赞头像 7. 抽离通用PostListBody组件，复用列表分页与交互逻辑 8. 优化班级列表页加载逻辑与图片预览交互 9. 新增评论删除、多图预览等细节交互功能
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