feat: 完善名师工作室内容与成员悬浮导航

更新工作室页面、成员资料与静态资源，保留成员导航的渐变及定位交互。排除视频和超过 10 MiB 的新增部署资源。

Co-Authored-By: Claude Code <noreply@anthropic.com>

.gitignore

@@ -22,3 +22,19 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+# Microsoft Office temporary lock files
+~$*.docx
+
+# Large original media kept outside the production bundle
+source-assets/
+
+# Videos and oversized deployment assets are managed outside Git
+*.mp4
+*.webm
+*.mov
+*.m4v
+*.avi
+*.mkv
+/public/fonts/SourceHanSansSC-Medium.otf
+/public/teachers/yuan-yuan/documents/yy-6bbf801b066d.pptx