fix(chat): 区分咨询与正常会话待处理规则

backend/internal/modules/chat/support.go

@@ -239,7 +239,7 @@ func (r *Repository) listAdminConversations(ctx context.Context, principal Princ
 			COALESCE(explicit_lo.handoff_status, listing_lo.handoff_status) AS latest_handoff_status,
 			COALESCE(explicit_lo.refund_status, listing_lo.refund_status) AS latest_refund_status,
 			lm.sender_type AS last_sender_type, lm.sender_id AS last_sender_id, lm.sender_role AS last_sender_role,
-			CASE WHEN ` + adminNeedsReplyExpression() + ` THEN 1 ELSE 0 END AS needs_reply,
+			CASE WHEN c.type = 'general_support' AND (` + adminNeedsReplyExpression() + `) THEN 1 ELSE 0 END AS needs_reply,
 			(
 				SELECT COUNT(1)
 				FROM chat_messages AS cm
@@ -415,7 +415,7 @@ func adminChatStageCondition(stage string, principal Principal) (string, []inter
 	latestRefundStatus := "COALESCE(explicit_lo.refund_status, listing_lo.refund_status)"
 	switch stage {
 	case adminChatStagePending:
-		return adminNeedsReplyExpression(), nil
+		return "c.type = 'general_support' AND (" + adminNeedsReplyExpression() + ")", nil
 	case adminChatStageUnjoined:
 		return latestID + " IS NULL", nil
 	case adminChatStageHandoff: