refactor(ui): single-source intelligent-eval label maps in status.ts

架构审查候选⑤：消除标签双轨，状态/决策类型映射单一出口。

- status.ts 新增 DECISION_TYPE_META（12 类型与后端 decision_type 字面量
  对齐）+ decisionTypeOf() 兜底：后端新增类型时前端不再静默显示裸字符串，
  未识别类型显式标注"未识别·xxx"
- DecisionProcess / ExecutionProcess 删除各自手写的 DECISION_TYPE_LABELS
  （后者是审查报告之外的第三处双轨），统一走 decisionTypeOf
- IntelligentEvals 的 STAT_CHIPS 标签从 EVAL_STATUS 派生，不再平行维护

tsc --noEmit 通过，前端 20 tests 全过，标签文本零变化。

frontend/web/src/components/intelligent_eval/DecisionProcess.tsx

@@ -5,25 +5,11 @@ import {
 import type { ColumnsType } from 'antd/es/table'
 import { DownloadOutlined, ReloadOutlined } from '@ant-design/icons'
 import SectionHeader from '../SectionHeader'
+import { decisionTypeOf } from './status'
 import { intelligentEvalsApi, type DecisionLog } from '../../api'
 import { colors } from '../../tokens'
 import { formatDateTime } from '../../utils/date'
 
-const DECISION_TYPE_LABELS: Record<string, { label: string; color: string }> = {
-  execute_session: { label: '执行会话', color: 'blue' },
-  wait: { label: '等待', color: 'default' },
-  start_analysis: { label: '开始分析', color: 'green' },
-  task_abandoned: { label: '任务放弃', color: 'red' },
-  session_expired: { label: '会话过期', color: 'orange' },
-  planner_trigger: { label: '规划触发', color: 'purple' },
-  planning_gate_failed: { label: '规划超闸判败', color: 'red' },
-  analyst_nudge: { label: '催促汇总', color: 'purple' },
-  executing_timeout: { label: '执行超窗判败', color: 'red' },
-  trigger_failed: { label: '触发失败', color: 'orange' },
-  trigger_failure_gate: { label: '触发失败判死', color: 'red' },
-  worker_trigger: { label: '执行触发', color: 'purple' },
-}
-
 interface DecisionProcessProps {
   evalId: string
   /** 独立页内作为子视图 tab 使用时可不传（tab 切换代替返回）。 */
@@ -85,7 +71,7 @@ export default function DecisionProcess({ evalId, onBack }: DecisionProcessProps
       key: 'decision_type',
       width: 120,
       render: (val: string) => {
-        const info = DECISION_TYPE_LABELS[val] ?? { label: val, color: 'default' }
+        const info = decisionTypeOf(val)
         return <Tag color={info.color}>{info.label}</Tag>
       },
     },
@@ -150,8 +136,8 @@ export default function DecisionProcess({ evalId, onBack }: DecisionProcessProps
               children: (
                 <div>
                   <div style={{ marginBottom: 4 }}>
-                    <Tag color={DECISION_TYPE_LABELS[log.decision_type]?.color ?? 'default'}>
-                      {DECISION_TYPE_LABELS[log.decision_type]?.label ?? log.decision_type}
+                    <Tag color={decisionTypeOf(log.decision_type).color}>
+                      {decisionTypeOf(log.decision_type).label}
                     </Tag>
                     <span style={{ fontSize: 12, color: colors.textSecondary }}>
                       {formatDateTime(log.created_at)}

frontend/web/src/components/intelligent_eval/ExecutionProcess.tsx

@@ -14,7 +14,7 @@ import {
   type IntelligentEval,
   type TaskQueueItem,
 } from '../../api'
-import { SESSION_STATUS } from './status'
+import { SESSION_STATUS, decisionTypeOf } from './status'
 import { colors, statusColors } from '../../tokens'
 import { formatDateTime } from '../../utils/date'
 import { usePolling } from '../../hooks/usePolling'
@@ -28,12 +28,6 @@ const STAGE_CONFIG = [
   { key: 'done', title: '完成', icon: CheckCircleOutlined },
 ]
 
-const DECISION_TYPE_LABELS: Record<string, string> = {
-  execute_session: '执行会话',
-  wait: '等待',
-  start_analysis: '开始分析',
-}
-
 interface ActivityEvent {
   time: string
   color: string
@@ -93,7 +87,7 @@ function decisionEvents(logs: DecisionLog[]): ActivityEvent[] {
     .map((log) => ({
       time: log.created_at as string,
       color: log.decision_type === 'start_analysis' ? 'green' : log.decision_type === 'wait' ? 'gray' : 'blue',
-      text: `决策·${DECISION_TYPE_LABELS[log.decision_type] ?? log.decision_type}：${log.reason}`,
+      text: `决策·${decisionTypeOf(log.decision_type).label}：${log.reason}`,
     }))
 }
 

frontend/web/src/components/intelligent_eval/status.ts

@@ -26,3 +26,24 @@ export const SEVERITY_META: Record<string, { label: string; color: string; order
 export function severityOf(severity: string) {
   return SEVERITY_META[severity?.toLowerCase()] ?? { label: severity, color: 'default', order: 99 }
 }
+
+// 决策日志类型的标签/颜色单一出口，与后端 decision_type 字面量一一对应。
+// 后端新增类型时前端在此补一行；未识别类型由 decisionTypeOf 显式兜底。
+export const DECISION_TYPE_META: Record<string, { label: string; color: string }> = {
+  execute_session: { label: '执行会话', color: 'blue' },
+  wait: { label: '等待', color: 'default' },
+  start_analysis: { label: '开始分析', color: 'green' },
+  task_abandoned: { label: '任务放弃', color: 'red' },
+  session_expired: { label: '会话过期', color: 'orange' },
+  planner_trigger: { label: '规划触发', color: 'purple' },
+  planning_gate_failed: { label: '规划超闸判败', color: 'red' },
+  analyst_nudge: { label: '催促汇总', color: 'purple' },
+  executing_timeout: { label: '执行超窗判败', color: 'red' },
+  trigger_failed: { label: '触发失败', color: 'orange' },
+  trigger_failure_gate: { label: '触发失败判死', color: 'red' },
+  worker_trigger: { label: '执行触发', color: 'purple' },
+}
+
+export function decisionTypeOf(decisionType: string) {
+  return DECISION_TYPE_META[decisionType] ?? { label: `未识别·${decisionType}`, color: 'default' }
+}

frontend/web/src/pages/IntelligentEvals.tsx

@@ -43,14 +43,14 @@ const TASKS_TAB: TabItem = {
 }
 
 // 状态统计条：全部 + 各状态（含 cancelled，保证 全部 = 各状态之和；draft 为 0 不单列）
+// 标签从 EVAL_STATUS 单一出口派生，不与 status.ts 平行维护
 const STAT_CHIPS: { key: string; label: string; color?: string }[] = [
   { key: 'all', label: '全部评估' },
-  { key: 'planning', label: '规划中' },
-  { key: 'pending_approval', label: '待审批' },
-  { key: 'executing', label: '执行中' },
-  { key: 'completed', label: '已完成', color: statusColors.completed },
-  { key: 'cancelled', label: '已取消' },
-  { key: 'failed', label: '失败', color: statusColors.failed },
+  ...(['planning', 'pending_approval', 'executing', 'completed', 'cancelled', 'failed'] as const).map((s) => ({
+    key: s,
+    label: EVAL_STATUS[s].label,
+    color: s === 'completed' ? statusColors.completed : s === 'failed' ? statusColors.failed : undefined,
+  })),
 ]
 
 export default function IntelligentEvalsPage() {