feat: 在AI推荐列表中添加发布日期字段并更新AI服务配置

frontend/src/components/Dashboard-AI.vue

@@ -55,6 +55,11 @@
                 </template>
               </el-table-column>
               <el-table-column prop="source" label="来源" width="200" />
+              <el-table-column prop="publishDate" label="发布日期" width="180">
+                <template #default="scope">
+                  {{ formatDate(scope.row.publishDate) }}
+                </template>
+              </el-table-column>
               <el-table-column prop="confidence" label="推荐度" width="120">
                 <template #default="scope">
                   <el-tag :type="getConfidenceType(scope.row.confidence)">
@@ -117,6 +122,7 @@ interface AIRecommendation {
   url: string
   source: string
   confidence: number
+  publishDate?: string
 }
 
 interface Props {