Initial commit: 传感器实验课件系统

- 基于 React 19 + Vite 7 + Tailwind CSS 4
- 实现拖拽排序功能 (@dnd-kit)
- 5个传感器实验项目展示
- 响应式设计和现代化 UI
- 修复拖拽释放到空白区域时的潜在 bug

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.gitignore

@@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?