fix: remove @intlify/unplugin-vue-i18n to resolve ReferenceError

The plugin forces vue-i18n to use esm-bundler.js entry via resolve alias,
which contains esbuild/rolldown internal module init function references
(init_runtime_dom_esm_bundler, etc.). When the bundler splits code into
chunks, these cross-chunk references become orphaned, causing ReferenceError.

Removing the plugin lets vue-i18n use its standard .mjs entry, which
does not have these problematic references. Locale messages are then
compiled at runtime instead of build time, but functionality is unchanged.

Fixes #230
See https://github.com/rolldown/rolldown/issues/9515

build/vite/index.ts

@@ -11,7 +11,6 @@ import Components from 'unplugin-vue-components/vite'
 import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
 import viteCompression from 'vite-plugin-compression'
 import topLevelAwait from 'vite-plugin-top-level-await'
-import VueI18nPlugin from '@intlify/unplugin-vue-i18n/vite'
 import { createSvgIconsPlugin } from 'vite-plugin-svg-icons-ng'
 import UnoCSS from 'unocss/vite'
 
@@ -68,11 +67,7 @@ export function createVitePlugins() {
       cache: false,
       include: ['src/**/*.vue', 'src/**/*.ts', 'src/**/*.tsx'] // 检查的文件
     }),
-    VueI18nPlugin({
-      runtimeOnly: true,
-      compositionOnly: true,
-      include: [resolve(__dirname, 'src/locales/**')]
-    }),
+
     createSvgIconsPlugin({
       iconDirs: [pathResolve('src/assets/svgs')],
       symbolId: 'icon-[dir]-[name]'