feat: 更新 Playwright 工作流以计算构建大小；添加 vite-plugin-purgecss-updated-v5 插件

vite.config.plugins.ts

@@ -25,6 +25,7 @@ import { createUtils4uAutoImports } from 'utils4u/auto-imports';
 import { PluginOption } from 'vite';
 import cdnImport from 'vite-plugin-cdn-import';
 import { vitePluginFakeServer } from 'vite-plugin-fake-server';
+import pluginPurgeCss from 'vite-plugin-purgecss-updated-v5';
 import { viteSingleFile } from 'vite-plugin-singlefile';
 import { viteStaticCopy } from 'vite-plugin-static-copy';
 import VueDevTools from 'vite-plugin-vue-devtools';
@@ -181,6 +182,11 @@ export function Plugins() {
         { dest: cesiumBaseUrl, src: `${cesiumSource}/Widgets` },
       ],
     }),
+
+    // https://github.com/rsnakdmx/vite-plugin-purgecss-v5?tab=readme-ov-file#-usage
+    pluginPurgeCss({
+      variables: true,
+    }),
   );
 
   const _unused = () => {