release(main): 清理示例数据并统一空态体验

frontend/src/views/ia/MaterialEquipment.vue

@@ -31,9 +31,10 @@
               <el-button link type="danger" @click="removeRow(row)">删除</el-button>
             </template>
           </el-table-column>
+          <template #empty>
+            <div v-if="!loading" class="table-empty">暂无设备数据</div>
+          </template>
         </el-table>
-
-        <StateEmpty v-if="!loading && rows.length === 0" description="暂无设备数据" />
       </section>
     </div>
     <StateEmpty v-else :description="TEXT.common.empty.selectProject" />
@@ -598,4 +599,14 @@ watch(
 .equipment-table :deep(td.el-table__cell .cell) {
   text-align: center;
 }
+.table-empty {
+  min-height: 220px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #8a97ab;
+  font-size: 14px;
+  font-weight: 500;
+  letter-spacing: 0.02em;
+}
 </style>