fix(dataset): 展示并切换三路数据切分

frontend/src/views/data-process/DataProcessDetailView.vue

@@ -448,6 +448,33 @@ async function publishDataset() {
   }
 }
 
+async function resyncPublishedDataset() {
+  if (!detail.value || !outputDatasetId.value || publishing.value) return
+  try {
+    await ElMessageBox.confirm(
+      '将按当前 8:1:1 配置重新生成训练、验证、测试三个切分文件，数据集 ID 保持不变。',
+      '重新同步数据切分？',
+      { type: 'warning', confirmButtonText: '重新同步', cancelButtonText: '取消' },
+    )
+  } catch {
+    return
+  }
+
+  publishing.value = true
+  try {
+    const published = await publishDataProcess(taskId.value, {
+      ...publishForm,
+      dataset_name: outputDatasetName.value || `${detail.value.name}-数据集`,
+      split: configuredSplit(),
+    })
+    ElMessage.success('训练集、验证集和测试集已重新同步')
+    const datasetId = published.dataset?.id || outputDatasetId.value
+    await router.push(`/dataset/${datasetId}/preview`)
+  } finally {
+    publishing.value = false
+  }
+}
+
 watch([currentPage, pageSize], () => void loadResults())
 
 onMounted(loadPage)
@@ -472,6 +499,13 @@ onBeforeUnmount(() => {
             <i class="fa" :class="outputDatasetId ? 'fa-external-link' : 'fa-database'" />
             {{ outputDatasetId ? '查看输出数据集' : '发布为数据集' }}
           </el-button>
+          <el-button
+            v-if="detail.status === 'completed' && outputDatasetId"
+            :loading="publishing"
+            @click="resyncPublishedDataset"
+          >
+            <i class="fa fa-refresh" />重新同步切分
+          </el-button>
         </div>
         <p>{{ detail.description || '暂无任务描述' }}</p>
         <dl class="heading-meta">
@@ -717,7 +751,7 @@ onBeforeUnmount(() => {
       <el-alert
         type="info"
         :closable="false"
-        :title="`数据集划分：训练集 ${publishForm.split.train}% / 验证集 ${publishForm.split.validation}% / 测试集 ${publishForm.split.test}%`"
+        :title="`将生成三个独立文件：训练集 ${publishForm.split.train}% / 验证集 ${publishForm.split.validation}% / 测试集 ${publishForm.split.test}%`"
       />
     </el-form>
     <template #footer>