陆运选项不全时改为复制填空清单，方便销售按编号回填。

停发填写样例图，同群只跟当前工单，重量体积统一为 KG/CBM。

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

inquiry-agent/agent/ledger/memory_ledger.py

@@ -665,7 +665,10 @@ class MemoryLedger:
             ticket = self._tickets.get(work_order_no)
             if ticket is None:
                 return {"ok": False, "error": "ticket_not_found"}
-            ticket.collab_chat_id = (chat_id or "").strip()
+            room = (chat_id or "").strip()
+            # 一群同时只跟一张单：陆运/海运旧绑定也要清掉，否则群里补字段会写到旧单。
+            self._unbind_other_collab_rooms(room=room, keep_work_order_no=work_order_no)
+            ticket.collab_chat_id = room
             ticket.collab_member_ids = [str(x) for x in member_ids]
             ticket.product_ids = [str(x) for x in (product_ids or [])]
             ticket.product_names = [str(x).strip() for x in (product_names or []) if str(x).strip()]
@@ -743,6 +746,22 @@ class MemoryLedger:
                     ticket.collab_facts.pop(name, None)
             return {"ok": True, "facts": dict(ticket.collab_facts)}
 
+    def _unbind_other_collab_rooms(self, *, room: str, keep_work_order_no: str) -> None:
+        """
+        同一群只留 keep 这一张单。调用方必须已持 self._lock。
+
+        陆运/海运旧单也要摘掉。测服 WO202609230023 补协同写到了同群陆运 WO202609230007。
+        """
+        room_id = (room or "").strip()
+        keep = (keep_work_order_no or "").strip()
+        if not room_id:
+            return
+        for other in self._tickets.values():
+            if other.work_order_no == keep:
+                continue
+            if other.collab_chat_id == room_id:
+                other.collab_chat_id = ""
+
     def find_by_collab_chat(self, *, chat_id: str) -> MemoryTicket | None:
         """用工微群 chat_id 找回工单。"""
         raw = (chat_id or "").strip()
@@ -772,10 +791,7 @@ class MemoryLedger:
                 return {"ok": False, "error": "terminal", "status": ticket.status}
             if ticket.collab_chat_id and ticket.collab_chat_id != room:
                 return {"ok": False, "error": "occupied", "other_chat_id": ticket.collab_chat_id}
-            for other in self._tickets.values():
-                if other.work_order_no != no and other.collab_chat_id == room:
-                    if (other.business_line or "").upper() == "AIR":
-                        other.collab_chat_id = ""
+            self._unbind_other_collab_rooms(room=room, keep_work_order_no=no)
             ticket.collab_chat_id = room
             return {
                 "ok": True,