补齐成交跟进：按线路推成交通知、收下未成交原因、协商中按工作日再问。

成交走询价消息服务；陆运/海运私聊下一句能记下原因；协商中回执写明顺延三个工作日和下次 9：00。

Co-authored-by: Cursor <cursoragent@cursor.com>

inquiry-agent/agent/policy/air_text_flow.py

@@ -322,6 +322,8 @@ class AirTextInquiryFlow:
             allowed = (copy.BTN_ADOPT_EXCEL, copy.BTN_ADOPT_PDF, copy.BTN_REJECT)
         elif phase == "wait_deal":
             allowed = (copy.BTN_DEAL, copy.BTN_LOST, copy.BTN_NEGOTIATE)
+        elif phase == "wait_lost_reason":
+            allowed = ()
         return FlowSession(
             sender_id=sender_id,
             thread_id=sender_id,
@@ -333,11 +335,17 @@ class AirTextInquiryFlow:
             status=status,
             allowed=allowed,
             wait_version=1,
+            invited_sales_name=str(view.get("sales_name") or view.get("salesName") or ""),
+            collab_chat_id=str(view.get("collab_chat_id") or ""),
         )
 
     def _infer_wait_phase(self, *, status: str, quote: dict[str, Any]) -> str:
-        if status in {"已成交", "未成交", "协商中", "已关闭"}:
+        if status in {"已成交", "已关闭"}:
             return "done"
+        if status == "未成交":
+            return "wait_lost_reason"
+        if status == "协商中":
+            return "wait_deal"
         if status == "已报价" and quote:
             return "wait_adopt"
         return "tms_miss"
@@ -413,6 +421,9 @@ class AirTextInquiryFlow:
             # 成交卡已经绑在报价文件那条出站上。这里再发一张独立卡，
             # 会在文件还在上传时被另一条出站线程抢走，销售又先看到成交跟进。
             return "wait_deal"
+        if sess.phase == "wait_lost_reason":
+            reply(copy.deal_ack("未成交", sess.work_order_no))
+            return "wait_lost_reason"
         if sess.phase == "done":
             reply(copy.deal_ack(sess.status or "已关闭", sess.work_order_no))
             return "done"
@@ -462,6 +473,13 @@ class AirTextInquiryFlow:
                 reply=reply,
                 card_meta=inbound_raw,
             )
+        # 未成交后下一句任意文字即原因；完整新询价（注入字段）则空着原因开新单。
+        if (
+            sess
+            and sess.phase == "wait_lost_reason"
+            and not (injected_facts and injected_mode)
+        ):
+            return self._capture_lost_reason(sess, text, reply)
 
         snap = extract_inquiry_snapshot(
             text,
@@ -1056,15 +1074,48 @@ class AirTextInquiryFlow:
     ) -> str:
         """点成交/未成交/协商中：先整卡置灰，再入主账。"""
         self._grey_clicked_card(reply, card_meta, replace_name=status)
-        result = self._ledger.transition(work_order_no=sess.work_order_no, to_status=status)
+        from agent.policy.deal_outcome import finish_deal_outcome
+
+        result = finish_deal_outcome(
+            ledger=self._ledger,
+            work_order_no=sess.work_order_no,
+            outcome=status,
+            facts=sess.facts,
+            quote=sess.quote,
+            business_line=sess.business_line,
+            sales_name=sess.invited_sales_name,
+        )
         if not result.get("ok"):
             reply("主账状态更新失败，成交结果未入账。")
             return "ledger_fail"
+        phase = str(result.get("phase") or "done")
         sess.status = status
+        sess.phase = phase
+        if phase == "wait_deal":
+            sess.allowed = (copy.BTN_DEAL, copy.BTN_LOST, copy.BTN_NEGOTIATE)
+        else:
+            sess.allowed = ()
+        sess.wait_version += 1
+        self._save(sess)
+        reply(copy.deal_ack(status, sess.work_order_no, str(result.get("next_followup_at") or "")))
+        return phase
+
+    def _capture_lost_reason(self, sess: FlowSession, text: str, reply: ReplyFn) -> str:
+        """私聊未成交后收下原因，不再追问。"""
+        from agent.policy.deal_outcome import capture_lost_reason
+
+        result = capture_lost_reason(
+            ledger=self._ledger,
+            work_order_no=sess.work_order_no,
+            reason=text,
+        )
+        if not result.get("ok"):
+            reply("未成交原因没有记下，请再发一句。")
+            return "wait_lost_reason"
         sess.phase = "done"
         sess.allowed = ()
         self._save(sess)
-        reply(copy.deal_ack(status, sess.work_order_no))
+        reply(copy.lost_reason_ack(text))
         return "done"
 
     def mark_wait_deal(self, sender_id: str, work_order_no: str) -> None: