feat: 评测模块新增详情页与创建向导

新增 EvalTaskDetail 与逐样本结果类型，Mock 与适配器补充评测详情接口，路由注册详情页并将维度创建并入向导；EvalCreateView 改为分步向导（任务配置、规则设置、维度表单），新增 EvalDetailView 展示综合得分与样本判定，列表补充详情入口，配套两份回归脚本。

frontend/src/views/eval/create/EvalTaskSetupStep.vue

@@ -0,0 +1,162 @@
+<script setup lang="ts">
+import { ref, watch } from 'vue'
+import type { FormInstance, FormRules } from 'element-plus'
+import type { DatasetItem, GpuInfo, TrainedModel } from '@/types'
+
+export interface EvalTaskSetupDraft {
+  eval_task_name: string
+  model_id: string | number
+  gpu_id: string | number
+  data_source: 'dataset' | 'inference'
+  dataset_id: string | number
+  leaderboard: boolean
+}
+
+defineProps<{
+  trainedModels: TrainedModel[]
+  evalDatasets: DatasetItem[]
+  gpus: GpuInfo[]
+  loading?: boolean
+  disabled?: boolean
+}>()
+
+const form = defineModel<EvalTaskSetupDraft>({ required: true })
+const formRef = ref<FormInstance>()
+
+const rules: FormRules<EvalTaskSetupDraft> = {
+  eval_task_name: [
+    { required: true, message: '请输入任务名称', trigger: 'blur' },
+    { max: 50, message: '任务名称不超过 50 个字符', trigger: 'blur' },
+  ],
+  model_id: [{ required: true, message: '请选择评测模型', trigger: 'change' }],
+  gpu_id: [{ required: true, message: '请选择 GPU', trigger: 'change' }],
+  dataset_id: [
+    {
+      validator: (_rule, value, callback) => {
+        if (form.value.data_source === 'dataset' && (value === '' || value === null || value === undefined)) {
+          callback(new Error('请选择评测数据集'))
+          return
+        }
+        callback()
+      },
+      trigger: 'change',
+    },
+  ],
+}
+
+watch(
+  () => form.value.data_source,
+  (source) => {
+    if (source !== 'dataset') {
+      form.value.dataset_id = ''
+      formRef.value?.clearValidate('dataset_id')
+    }
+  },
+)
+
+async function validate() {
+  if (!formRef.value) return false
+  try {
+    await formRef.value.validate()
+    return true
+  } catch {
+    return false
+  }
+}
+
+defineExpose({ validate })
+</script>
+
+<template>
+  <el-form
+    ref="formRef"
+    :model="form"
+    :rules="rules"
+    label-width="120px"
+    class="step-form"
+    :disabled="disabled"
+  >
+    <el-form-item label="任务名称" prop="eval_task_name">
+      <el-input v-model="form.eval_task_name" placeholder="请输入任务名称" maxlength="50" show-word-limit />
+    </el-form-item>
+
+    <el-form-item label="评测模型" prop="model_id">
+      <el-select
+        v-model="form.model_id"
+        placeholder="请选择已训练且已合并的模型"
+        filterable
+        style="width: 100%"
+        :loading="loading"
+      >
+        <el-option
+          v-for="model in trainedModels"
+          :key="model.id"
+          :label="model.name"
+          :value="model.id"
+          :disabled="!model.merged"
+        />
+      </el-select>
+      <div class="field-tip">未完成合并的模型不可用于评测。</div>
+    </el-form-item>
+
+    <el-form-item label="选择 GPU" prop="gpu_id">
+      <el-select v-model="form.gpu_id" placeholder="请选择 GPU" style="width: 100%" :loading="loading">
+        <el-option
+          v-for="(gpu, index) in gpus"
+          :key="index"
+          :label="`${gpu.name} (GPU ${index})`"
+          :value="index"
+        />
+      </el-select>
+    </el-form-item>
+
+    <el-form-item label="数据来源">
+      <el-radio-group v-model="form.data_source">
+        <el-radio value="dataset">评测数据集</el-radio>
+        <el-radio value="inference">推理结果集</el-radio>
+      </el-radio-group>
+    </el-form-item>
+
+    <el-form-item v-if="form.data_source === 'dataset'" label="评测数据集" prop="dataset_id">
+      <el-select
+        v-model="form.dataset_id"
+        placeholder="请选择评测数据集"
+        filterable
+        style="width: 100%"
+        :loading="loading"
+      >
+        <el-option v-for="dataset in evalDatasets" :key="dataset.id" :label="dataset.name" :value="dataset.id" />
+      </el-select>
+    </el-form-item>
+
+    <el-alert
+      v-else
+      title="将使用该模型最近一次可用的推理结果集。"
+      type="info"
+      :closable="false"
+      show-icon
+      class="source-alert"
+    />
+
+    <el-form-item label="加入排行榜">
+      <el-switch v-model="form.leaderboard" />
+    </el-form-item>
+  </el-form>
+</template>
+
+<style scoped>
+.step-form {
+  max-width: 760px;
+}
+
+.field-tip {
+  color: #909399;
+  font-size: 12px;
+  line-height: 20px;
+}
+
+.source-alert {
+  margin: -4px 0 20px 120px;
+  max-width: 640px;
+}
+</style>