feat: 补全i18n适配

- 为各个页面补全i18n文本

app/components/pages/download/FileCard.vue

@@ -8,15 +8,17 @@
     </template>
     <dl class="text-gray-600 space-y-1 mb-6">
       <div>
-        <dt class="font-semibold inline">类型：</dt>
+        <dt class="font-semibold inline">{{ $t('document-meta.type') }}：</dt>
         <dd class="inline">{{ file.type }}</dd>
       </div>
       <div>
-        <dt class="font-semibold inline">大小：</dt>
+        <dt class="font-semibold inline">{{ $t('document-meta.size') }}：</dt>
         <dd class="inline">{{ formatFileSize(file.filesize) }}</dd>
       </div>
       <div>
-        <dt class="font-semibold inline">上传时间：</dt>
+        <dt class="font-semibold inline">
+          {{ $t('document-meta.upload-at') }}：
+        </dt>
         <dd class="inline">
           {{ new Date(file.uploaded_on).toLocaleDateString() }}
         </dd>
@@ -24,10 +26,12 @@
     </dl>
     <template #footer>
       <div class="button-group">
-        <el-button type="primary" @click="handleDownload">下载</el-button>
-        <el-button v-if="file.previewable" @click="handlePreview"
-          >预览</el-button
-        >
+        <el-button type="primary" @click="handleDownload">{{
+          $t('document-action.download')
+        }}</el-button>
+        <el-button v-if="file.previewable" @click="handlePreview">{{
+          $t('document-action.preview')
+        }}</el-button>
       </div>
     </template>
   </el-card>

app/components/pages/homepage/HomepageProductSection.vue

@@ -1,8 +1,8 @@
 <template>
   <section class="homepage-section">
-    <h2>推荐产品</h2>
+    <h2>{{ $t('homepage.recommended-products') }}</h2>
     <p>
-      探索我们的精选产品，满足您的各种需求。无论是创新技术还是经典设计，我们都为您提供优质选择。
+      {{ $t('homepage.recommended-products-desc') }}
     </p>
     <div v-if="!pending">
       <el-carousel

app/components/pages/homepage/HomepageSolutionSection.vue

@@ -1,7 +1,7 @@
 <template>
   <section class="homepage-section">
-    <h2>推荐解决方案</h2>
-    <p>了解我们的定制解决方案，帮助您优化业务流程，提高效率。</p>
+    <h2>{{ $t('homepage.recommended-solutions') }}</h2>
+    <p>{{ $t('homepage.recommended-solutions-desc') }}</p>
     <div v-if="!pending">
       <el-carousel
         class="recommend-carousel"

app/components/pages/support/SupportCard.vue

@@ -20,7 +20,7 @@
     <el-row>
       <NuxtLink class="card-link" :to="to">
         <el-button class="card-button" round>
-          <span>了解更多 > </span>
+          <span>{{ $t('learn-more') }} > </span>
         </el-button>
       </NuxtLink>
     </el-row>

app/components/pages/support/SupportTabs.vue

@@ -21,10 +21,10 @@
 
   const activeTab = ref(props.modelValue || '');
   const options = [
-    { label: '服务支持', value: '' },
-    { label: '常见问题', value: 'faq' },
-    { label: '文档资料', value: 'documents' },
-    { label: '联系售后', value: 'contact-us' },
+    { label: $t('navigation.support'), value: '' },
+    { label: $t('navigation.faq'), value: 'faq' },
+    { label: $t('navigation.documents'), value: 'documents' },
+    { label: $t('navigation.contact-info'), value: 'contact-us' },
   ];
 
   const handleSegmentedChange = (value: string) => {