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/policy/land_text_flow.py

@@ -123,6 +123,17 @@ class LandTextInquiryFlow(SeaTextInquiryFlow):
             allow_b=allow_b,
             chat_fn=chat_fn,
         )
+        from agent.policy.system_exception import handle_extract_tech_fail
+
+        llm_phase = handle_extract_tech_fail(
+            snap=snap,
+            ledger=self._ledger,
+            reply=reply,
+            sender_id=sender_id,
+            sess=sess,
+        )
+        if llm_phase:
+            return llm_phase
         mode = (snap.get("business_line") or "").upper()
         snap_facts = dict(snap.get("facts") or {})
         facts = dict(snap_facts)
@@ -308,7 +319,11 @@ class LandTextInquiryFlow(SeaTextInquiryFlow):
         ) or ""
         self._wait_inquiry_sent(str(out_id), work_order_no=no)
 
-        tms = self._ledger.query_tms(work_order_no=no, facts=facts, business_line="LAND")
+        from agent.policy.system_exception import query_tms_resilient
+
+        tms = query_tms_resilient(
+            self._ledger, work_order_no=no, facts=facts, business_line="LAND"
+        )
         sess = FlowSession(
             sender_id=sender_id,
             thread_id=sender_id,
@@ -335,7 +350,11 @@ class LandTextInquiryFlow(SeaTextInquiryFlow):
             reply(copy.LAND_CONFIRM_EXPIRED)
             return "land_confirm_expired"
         reply(copy.LAND_TMS_RETRYING.format(wo=no))
-        tms = self._ledger.query_tms(work_order_no=no, facts=facts, business_line="LAND")
+        from agent.policy.system_exception import query_tms_resilient
+
+        tms = query_tms_resilient(
+            self._ledger, work_order_no=no, facts=facts, business_line="LAND"
+        )
         return self._apply_land_tms(sess=sess, tms=tms, reply=reply, retrying=True)
 
     def _apply_land_tms(
@@ -350,6 +369,18 @@ class LandTextInquiryFlow(SeaTextInquiryFlow):
         _ = retrying
         no = (sess.work_order_no or "").strip()
         if not tms.get("ok"):
+            from agent.policy.system_exception import confirm_tms_quote_if_tech
+
+            if confirm_tms_quote_if_tech(
+                ledger=self._ledger,
+                reply=reply,
+                work_order_no=no,
+                tms=tms,
+                sender_id=sess.sender_id,
+                ticket_status="询价中",
+            ):
+                self.drop_current_bookmark(sess.sender_id)
+                return "system_exception"
             reply("TMS 查询失败，请稍后重试。工单已创建：" + no)
             sess.phase = "tms_tech"
             self._save(sess)