fix(chat): 区分咨询与正常会话待处理规则

backend/internal/modules/chat/admin_list_test.go

@@ -99,8 +99,8 @@ func TestListAdminConversationsUsesPersonalStateAndBatchData(t *testing.T) {
 	if item.UnreadCount != 1 {
 		t.Fatalf("管理员未读数 = %d, want 1", item.UnreadCount)
 	}
-	if !item.NeedsReply {
+	if item.NeedsReply {
-		t.Fatal("用户消息未回复时应保持待处理")
+		t.Fatal("订单群用户消息不应因未回复停留在待处理")
 	}
 	counts, err := repo.AdminConversationCounts(t.Context(), Principal{Type: "admin", ID: admin.ID}, adminChatFilterMine, adminChatStageAll, "")
 	if err != nil {
@@ -109,6 +109,16 @@ func TestListAdminConversationsUsesPersonalStateAndBatchData(t *testing.T) {
 	if counts.Ownership[adminChatFilterMine] != 1 || counts.Stages[adminChatStageAll] != 1 {
 		t.Fatalf("聚合统计异常: ownership=%v stages=%v", counts.Ownership, counts.Stages)
 	}
+	if err := db.Model(&conversation).Update("type", ConversationTypeGeneralSupport).Error; err != nil {
+		t.Fatalf("切换咨询会话类型失败: %v", err)
+	}
+	result, err = repo.ListConversationsWithFilter(t.Context(), Principal{Type: "admin", ID: admin.ID}, 1, 20, adminChatFilterMine, adminChatStagePending, "")
+	if err != nil {
+		t.Fatalf("查询咨询待处理会话失败: %v", err)
+	}
+	if result.Total != 1 {
+		t.Fatalf("咨询未回复待处理数量 = %d, want 1", result.Total)
+	}
 
 	adminMessage := model.ChatMessage{ConversationID: conversation.ID, SenderType: "admin", SenderID: admin.ID, SenderRole: "support", ContentType: "text", Content: "客服回复", CreatedAt: now.Add(2 * time.Second)}
 	if err := db.Create(&adminMessage).Error; err != nil {

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: