新增: Conditions 启用 + 工作流 DAG 展示 + 决策记录

- 开启 conditions-eval feature flag(df-workflow 默认启用)
- 新增 WorkflowDagDisplay.vue 展示工作流节点/边/条件
- TaskDetail 工作流推进后自动获取并显示 DAG 结构
- 记录 2026-06-27 讨论决策到待决策.md
- 记录 Inbox 设计想法到 todo.md

src/views/TaskDetail.vue

@@ -168,6 +168,7 @@ import {
 } from '../constants/project'
 import type { TaskRecord, ProjectRecord, IdeaRecord, DfDataChangedPayload, WorkflowEventPayload } from '@/api/types'
 import TaskOutputCard from '@/components/task/TaskOutputCard.vue'
+import WorkflowDagDisplay from '@/components/workflow/WorkflowDagDisplay.vue'
 
 const { t } = useI18n()
 const route = useRoute()
@@ -198,6 +199,15 @@ let _wfResultTimer: ReturnType<typeof setTimeout> | null = null
 const wfProgressHint = computed(() => wfResult.value !== null)
 const wfCompletedHint = computed(() => wfResult.value === 'completed')
 const wfFailedHint = computed(() => wfResult.value === 'failed')
+
+// 工作流 DAG 结构展示
+const wfDagJson = ref('')
+async function refreshWorkflowDag(execId: string) {
+  try {
+    const record = await workflowApi.getExecution(execId)
+    if (record?.dag_json) wfDagJson.value = record.dag_json
+  } catch { /* 静默 */ }
+}
 const wfDoneTotal = computed(() => wfTotalNodes.value)
 
 const taskId = computed(() => route.params.id as string)
@@ -337,6 +347,7 @@ async function handleWorkflowAdvance(target: string) {
     )
     wfExecId.value = execId
     errorMsg.value = ''
+    await refreshWorkflowDag(execId)
   } catch (e: any) {
     wfAdvancing.value = false
     wfExecId.value = null