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>

index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>my-drag-app</title>
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="/src/main.jsx"></script>
+  </body>
+</html>