refactor: 移除已训练模型的删除入口

清理已训练模型（合并权重）的删除处理函数、表格 delete-fn 绑定与行内删除按钮，避免误删合并产物。

frontend/src/views/model/ModelManageView.vue

@@ -59,11 +59,7 @@ async function handleDeleteConfig(row: any) {
   ElMessage.success('删除成功')
 }
 
-/** 删除已训练模型（合并权重） */
+
-async function handleDeleteTrained(row: any) {
-  await deleteTrainedModel(row.id || row.name, 'merged')
-  ElMessage.success('删除成功')
-}
 
 /** 删除 LoRA 权重 */
 async function handleDeleteWeight(row: any) {
@@ -184,7 +180,6 @@ onMounted(loadData)
       :loading="loading"
       searchable
       :search-fields="['name']"
-      :delete-fn="handleDeleteTrained"
       row-key="name"
       @refresh="loadTrained"
     >
@@ -250,15 +245,7 @@ onMounted(loadData)
           >
             <i class="fa fa-download" style="margin-right: 4px" />导出
           </el-button>
-          <el-button
+
-            v-if="row.merged"
-            type="danger"
-            link
-            size="small"
-            @click="handleDeleteTrained(row)"
-          >
-            <i class="fa fa-trash-o" style="margin-right: 4px" />删除
-          </el-button>
         </div>
       </template>
     </DataTablePage>