feat: 评测任务元数据增强与前端展示优化

后端:
- 新增评测指标标签生成(_build_eval_metric_label/_basic_metric_labels)
- eval 任务 payload 富化(_enrich_eval_payload): 解析模型名/数据集名/维度配置, 生成 metric_label
- 任务创建时解析 trained_models/模型名, metric 回退为 metric_label
- 运行时状态刷新增加 2s 节流, 避免频繁触发

前端:
- EvalTask 类型增加 dataset_id/metric_label
- 评测列表与详情展示 metric_label 指标标签, 模型名/指标超长 tooltip 省略
- 创建页改用 getComputeGpus 过滤空闲 GPU, 移除 getSystemInfo 依赖

frontend/src/views/eval/EvalView.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script setup lang="ts">
 import { ref, onMounted, onUnmounted } from 'vue'
 import { useRouter } from 'vue-router'
 import { ElMessage, ElMessageBox } from 'element-plus'
@@ -57,6 +57,14 @@ function handleViewDetail(row: any) {
   router.push({ name: 'model-eval-detail', params: { id: row.id } })
 }
 
+function displayModelName(row: Partial<EvalTask>) {
+  return row.model_name || String(row.model_id || '-')
+}
+
+function displayMetric(row: Partial<EvalTask>) {
+  return row.metric_label || row.metric || '-'
+}
+
 const { start: startPolling, stop: stopPolling } = usePolling(
   async () => {
     await loadEvalList({ silent: true })
@@ -102,9 +110,21 @@ onUnmounted(() => {
       </template>
             <template #columns>
               <el-table-column label="任务名称" prop="eval_task_name" align="center" />
-              <el-table-column label="评测模型" prop="model_name" align="center" />
+              <el-table-column label="评测模型" align="center" min-width="160">
+                <template #default="{ row }">
+                  <el-tooltip :content="displayModelName(row)" placement="top" :disabled="displayModelName(row).length < 18">
+                    <span class="cell-ellipsis">{{ displayModelName(row) }}</span>
+                  </el-tooltip>
+                </template>
+              </el-table-column>
               <el-table-column label="数据集" prop="dataset" align="center" />
-              <el-table-column label="指标" prop="metric" align="center" />
+              <el-table-column label="指标" align="center" min-width="220">
+                <template #default="{ row }">
+                  <el-tooltip :content="displayMetric(row)" placement="top" :disabled="displayMetric(row).length < 24">
+                    <span class="cell-ellipsis">{{ displayMetric(row) }}</span>
+                  </el-tooltip>
+                </template>
+              </el-table-column>
               <el-table-column label="评分" prop="score" width="100" align="center" />
               <el-table-column label="状态" width="100" align="center">
                 <template #default="{ row }">
@@ -159,7 +179,7 @@ onUnmounted(() => {
   min-height: 0;
 }
 
-/* 胶囊切换栏样式 */
+/* 胶囊切换栏 */
 .capsule-tabs {
   display: flex;
   background: #f1f5f9;
@@ -193,4 +213,13 @@ onUnmounted(() => {
   }
 }
 
+.cell-ellipsis {
+  display: inline-block;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  vertical-align: middle;
+  white-space: nowrap;
+}
+
 </style>