refactor: sync managers and section box actions

Wire section box scale/reverse/reset to clipping APIs and sync demo artifacts.

demo/vite.config.js

@@ -5,8 +5,9 @@ export default defineConfig({
   root: '.',
   server: {
     port: 8080,
+    host: '0.0.0.0',
     open: true,
-    // 允许访问父目录的文件（用于加载 SDK）
+    allowedHosts: true,
     fs: {
       allow: ['..']
     }