fix: 已出号后新一轮询价不带上一单字段

点名海运时丢掉旧陆运补问草稿，避免补字段误发填写样例图。

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

inquiry-agent/agent/policy/air_text_flow.py

@@ -395,6 +395,31 @@ class AirTextInquiryFlow:
         self._save(new_sess)
         return new_sess.phase or "clarify"
 
+    def _detach_ticketed_for_new_inquiry(self, sess: Optional[FlowSession]) -> Optional[FlowSession]:
+        """
+        已经出过正式工单号：这一句按新一轮收字段，不带上一单。
+
+        测服 WO202609200012 出号后，下一句海运把旧贸易条款写进 WO202609200013。
+        点按钮、未成交原因、调价已在前面处理。虚拟号还在补问，要接着填。
+        """
+        if sess is None:
+            return None
+        from agent.policy.handoff_human import is_virtual_no
+
+        no = (sess.work_order_no or "").strip()
+        phase = (sess.phase or "").strip()
+        if not no or is_virtual_no(no):
+            return sess
+        if phase in {"clarify", "need_mode", "handoff_offer", "wait_lost_reason"}:
+            return sess
+        logger.info(
+            "%s.new_over_old phase=%s wo=%s",
+            self.bookmark_kind,
+            phase or "-",
+            no,
+        )
+        return None
+
     def drop_current_bookmark(self, sender_id: str) -> Optional[FlowSession]:
         """
         发图新开：丢掉当前书签，已出号会话仍留在 _by_ticket。
@@ -691,6 +716,7 @@ class AirTextInquiryFlow:
             adjusted = try_private_adjust(self, sess, text, reply)
             if adjusted:
                 return adjusted
+        sess = self._detach_ticketed_for_new_inquiry(sess)
 
         snap = extract_inquiry_snapshot(
             text,
@@ -734,6 +760,8 @@ class AirTextInquiryFlow:
             if mode == "LAND":
                 from agent.policy.land_text_flow import get_land_text_flow
 
+                # 本句已是陆运：丢掉空运补问草稿。
+                self.drop_current_bookmark(sender_id)
                 return get_land_text_flow().on_text(
                     sender_id=sender_id,
                     text=text,
@@ -749,6 +777,7 @@ class AirTextInquiryFlow:
                 # 海运交给海运 Owner，空运不再回「本轮先开通空运」
                 from agent.policy.sea_text_flow import get_sea_text_flow
 
+                self.drop_current_bookmark(sender_id)
                 return get_sea_text_flow().on_text(
                     sender_id=sender_id,
                     text=text,