feat:为 Home.vue 中的最新知识库和智能体部分添加空数据占位符

- 在没有数据的情况下显示 el-empty 组件
- 为 dataset 和 agent 添加 v-if 指令，仅在数据存在时显示内容
-

src/views/app/Home.vue

@@ -39,6 +39,7 @@
         <div class="latest-section flex align-items-c justify-content-b">
           <div class="latest-knowledge">
             <span class="section-title">最近使用知识库</span>
+            <div v-if="dataset.name">
               <div
                 class="section-content"
                 @click="jumpUrl(`/knowledge/detail?datasetId=${dataset.id}`)"
@@ -60,13 +61,23 @@
               </div>
 
               <lineEcharts
+                v-if="dataset.name"
                 :key="MatchId"
                 :options="options"
                 style="width: 100%;height: calc(100% - 120px);background: unset"
               ></lineEcharts>
             </div>
+            <div
+              style="height: 100%"
+              class="flex align-items-c justify-content-c"
+              v-else
+            >
+              <el-empty></el-empty>
+            </div>
+          </div>
           <div class="latest-agent">
             <span class="section-title">最近使用智能体</span>
+            <div v-if="agent.appName">
               <div class="section-content" @click="jumpAgent(agent)">
                 <div class="knowledge-item flex align-items-c">
                   <div class="knowledge-image">
@@ -119,6 +130,14 @@
                 style="width: 100%;height: calc(100% - 120px);background: unset"
               ></lineEcharts>
             </div>
+            <div
+              style="height: 100%"
+              class="flex align-items-c justify-content-c"
+              v-else
+            >
+              <el-empty></el-empty>
+            </div>
+          </div>
         </div>
       </div>
     </div>