Version: 0.9.6.dev.260407

后端：
1.execute 正式终止协议补齐（abort / exhausted / completed 统一建模）
  - 更新model/common_state.go：新增 FlowTerminalStatus / FlowTerminalOutcome；补齐 Abort/Exhaust/ClearTerminalOutcome/IsCompleted 等统一终止语义
  - 更新model/execute_contract.go：新增 ExecuteActionAbort 与 AbortIntent；补齐 action 校验互斥规则
  - 更新prompt/execute.go：Plan/ReAct 两套 execute contract 升级到 V2，补充 abort 协议与 JSON 示例
2.graph 路由与 deliver 收口统一围绕 terminal outcome
  - 更新graph/common_graph.go：RoughBuild 改 branch；粗排异常可直接 Deliver；Execute 路由不再按“最后一轮”提前误收口
  - 更新node/execute.go：轮次耗尽改写为 Exhaust；接入 handleExecuteActionAbort；abort 不在 execute 直接对用户收口
  - 更新node/deliver.go：deliver summary 优先按 abort/exhausted 收口；不再无脑 Done；最终状态文案改为“本轮流程已结束”
  - 更新node/agent_nodes.go：仅 completed 路径写 schedule preview，aborted/exhausted 跳过
3.提示与状态摘要同步终止语义
  - 更新prompt/base.go：state summary 增加 terminal outcome 展示
前端：无 仓库：无

backend/newAgent/prompt/base.go

@@ -76,6 +76,18 @@ func renderStateSummary(state *newagentmodel.CommonState) string {
 
 	sb.WriteString(fmt.Sprintf("当前阶段：%s\n", state.Phase))
 	sb.WriteString(fmt.Sprintf("当前轮次：%d/%d\n", state.RoundUsed, state.MaxRounds))
+	if state.HasTerminalOutcome() && state.TerminalOutcome != nil {
+		sb.WriteString(fmt.Sprintf("终止结果：%s\n", state.TerminalOutcome.Status))
+		if strings.TrimSpace(state.TerminalOutcome.Stage) != "" {
+			sb.WriteString(fmt.Sprintf("终止阶段：%s\n", state.TerminalOutcome.Stage))
+		}
+		if strings.TrimSpace(state.TerminalOutcome.Code) != "" {
+			sb.WriteString(fmt.Sprintf("终止代码：%s\n", state.TerminalOutcome.Code))
+		}
+		if strings.TrimSpace(state.TerminalOutcome.UserMessage) != "" {
+			sb.WriteString(fmt.Sprintf("终止说明：%s\n", state.TerminalOutcome.UserMessage))
+		}
+	}
 
 	if !state.HasPlan() {
 		sb.WriteString("当前完整 plan：暂无。\n")