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/mock/adapter.ts

@@ -16,6 +16,7 @@ import {
   mockFineTuneList,
   mockCompareList,
   mockEvalList,
+  mockEvalDetails,
   mockDimensions,
   mockLogFiles,
   mockTrainingLogFiles,
@@ -229,6 +230,12 @@ async function handleMock(config: AxiosRequestConfig) {
   if (url === '/model-eval' && method === 'get') return ok(mockEvalList)
   if (url === '/model-eval' && method === 'delete') return ok({ deleted: true })
   if (url === '/model-eval/start' && method === 'post') return ok({ task_id: Math.floor(Math.random() * 1000) + 1 })
+  m = url.match(/^\/model-eval\/([^/]+)$/)
+  const evalTaskId = m?.[1]
+  if (evalTaskId && method === 'get') {
+    const found = mockEvalDetails.find((item) => String(item.id) === evalTaskId)
+    return found ? ok(found) : fail('评测任务不存在', 404)
+  }
   if (url === '/dimension' && method === 'get') return ok(mockDimensions)
   if (url === '/dimension' && method === 'post') {
     return ok({ id: Math.floor(Math.random() * 1000) + 100 })