新增 汽车360度全景展示移动端Web应用

- 实现触摸滑动旋转查看汽车360度全景
- 添加惯性滑动效果和自动旋转展示功能
- 实现全屏沉浸式体验和精美Loading动画
- 添加Python视频帧提取脚本和浏览器端提取工具
- 包含本地HTTP服务器和完整项目文档

server.js

@@ -0,0 +1,43 @@
+const http = require('http');
+const fs = require('fs');
+const path = require('path');
+
+const PORT = 9000;
+const ROOT = 'J:/git/3D-pano';
+
+const mimeTypes = {
+    '.html': 'text/html',
+    '.js': 'application/javascript',
+    '.css': 'text/css',
+    '.jpg': 'image/jpeg',
+    '.jpeg': 'image/jpeg',
+    '.png': 'image/png',
+    '.mp4': 'video/mp4',
+    '.json': 'application/json'
+};
+
+const server = http.createServer((req, res) => {
+    console.log('Request:', req.url);
+    
+    let filePath = path.join(ROOT, req.url === '/' ? 'index.html' : req.url);
+    const ext = path.extname(filePath).toLowerCase();
+    
+    fs.readFile(filePath, (err, data) => {
+        if (err) {
+            res.writeHead(404);
+            res.end('Not Found');
+            return;
+        }
+        
+        res.writeHead(200, {
+            'Content-Type': mimeTypes[ext] || 'application/octet-stream',
+            'Access-Control-Allow-Origin': '*',
+            'Cache-Control': 'no-cache'
+        });
+        res.end(data);
+    });
+});
+
+server.listen(PORT, '127.0.0.1', () => {
+    console.log(`Server running at http://127.0.0.1:${PORT}/`);
+});