落地多段联运私聊：齐了才建单拉群，附件只收格子值，核对改正不再整单重开。

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

inquiry-agent/agent/handlers/group_collab.py

@@ -95,6 +95,30 @@ def handle_group_inbound(
             from agent.policy.land_text_flow import get_land_text_flow
 
             engine = get_land_text_flow()
+    view0 = ticket_view(ticket)
+    line = str(
+        view0.get("business_line")
+        or view0.get("businessLine")
+        or getattr(ticket, "business_line", "")
+        or ""
+    ).upper()
+    if line == "MULTI":
+        from agent.policy.multi_group_ops import handle_multi_inbound, sender_mode
+
+        if not (
+            _sender_allowed(ticket, message.sender_id)
+            or sender_mode(engine, message.sender_id)
+        ):
+            logger.info("group_inbound 多段忽略非成员 sender=%s", message.sender_id)
+            return "group_ignore"
+        return handle_multi_inbound(
+            flow=engine,
+            ticket=ticket,
+            chat_id=chat_id,
+            sender_id=message.sender_id,
+            text=message.content or "",
+            injected_quote=injected_quote,
+        )
     ticket = hydrate_ticket(engine, ticket)
     if not _sender_allowed(ticket, message.sender_id):
         logger.info("group_inbound 忽略非成员 sender=%s chat=%s", message.sender_id, chat_id)