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

package.json

@@ -0,0 +1,18 @@
+{
+  "name": "3d-pano",
+  "version": "1.0.0",
+  "description": "",
+  "main": "app.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node server.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://git.pandorastudio.cn/demo/3D-pano.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs"
+}