落地系统异常：大模型/TMS/建群故障停住本单并告警，后台可重试失败步骤。

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

inquiry-agent/agent/ledger/http_ledger.py

@@ -433,3 +433,47 @@ class HttpLedger:
             body,
             idem=f"manual-quote:{work_order_no}:{sig}",
         )
+
+    def mark_system_exception(
+        self,
+        *,
+        work_order_no: str,
+        system_exception: str,
+        system_exception_reason: str,
+        step: str = "",
+        payload: dict[str, Any] | None = None,
+    ) -> dict[str, Any]:
+        """写入工单系统异常两列。已关闭由主账拒绝。"""
+        out = self._post(
+            "/inquiry/agent/ticket/markSystemException",
+            {
+                "workOrderNo": work_order_no,
+                "systemException": system_exception,
+                "systemExceptionReason": system_exception_reason,
+                "step": step,
+                "payload": dict(payload or {}),
+            },
+        )
+        if out.get("ok") is False:
+            return out
+        out.setdefault("ok", True)
+        return out
+
+    def clear_system_exception(self, *, work_order_no: str) -> dict[str, Any]:
+        """重试成功后清两列。"""
+        out = self._post(
+            "/inquiry/agent/ticket/clearSystemException",
+            {"workOrderNo": work_order_no},
+        )
+        if out.get("ok") is False:
+            return out
+        out.setdefault("ok", True)
+        return out
+
+    def list_exception_notify_users(self) -> list[dict[str, Any]]:
+        """角色勾了系统异常消息通知、且账号已绑企微。"""
+        out = self._post("/inquiry/agent/account/listExceptionNotify", {})
+        rows = out.get("staff") or out.get("result") or []
+        if isinstance(rows, list):
+            return [dict(x) for x in rows if isinstance(x, dict)]
+        return []