角色业务范围收紧工单与模板；报价日期不当费用；未选舱不迁已报价；另开一票可清违禁 hold

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

inquiry-agent/agent/ledger/memory_ledger.py

@@ -304,12 +304,18 @@ class MemoryLedger:
             }
 
     def update_facts(self, *, work_order_no: str, facts: dict[str, str]) -> dict[str, Any]:
-        """选定线路后写回起运港等询价事实。"""
+        """选定线路后写回起运港等询价事实。空值不删已有键，与主账合并语义一致。"""
         with self._lock:
             ticket = self._tickets.get(work_order_no)
             if ticket is None:
                 return {"ok": False, "error": "ticket_not_found"}
-            ticket.facts = dict(facts)
+            merged = dict(ticket.facts or {})
+            for key, raw in (facts or {}).items():
+                name = str(key or "").strip()
+                val = str(raw or "").strip()
+                if name and val:
+                    merged[name] = val
+            ticket.facts = merged
             return {"ok": True}
 
     def void_quote_files(self, *, work_order_no: str) -> dict[str, Any]: