Prepare production smart scale Android app

android-app/vite.config.ts

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+import { defineConfig } from "vite";
+import react from "@vitejs/plugin-react";
+
+export default defineConfig({
+  base: "./",
+  plugins: [
+    react(),
+    {
+      // Android 7.1 的旧版 WebView 不能直接执行 module 脚本。
+      name: "android-7-classic-script",
+      transformIndexHtml: {
+        order: "post",
+        handler(html) {
+          return html.replace(
+            /<script type="module" crossorigin src="([^"]+)"><\/script>/,
+            '<script defer src="$1"></script>',
+          );
+        },
+      },
+    },
+  ],
+  resolve: {
+    dedupe: ["react", "react-dom"],
+  },
+  build: {
+    // 生产终端为 Android 7.1，内置 Chromium WebView 52。
+    target: "chrome52",
+    cssTarget: "chrome52",
+    sourcemap: false,
+  },
+});