优化快捷回复功能

backend/internal/modules/chat/repository.go

@@ -883,7 +883,11 @@ func (r *Repository) ListConversationsWithFilter(principal Principal, page, page
 
 	items := make([]ConversationDTO, 0, len(rows))
 	for _, row := range rows {
-		items = append(items, row.toDTO(nil))
+		participants, err := r.participants(row.ID)
+		if err != nil {
+			return nil, err
+		}
+		items = append(items, row.toDTO(participants))
 	}
 	return &PaginatedResult{Items: items, Total: total, Page: page, PageSize: pageSize}, nil
 }
@@ -957,8 +961,12 @@ func (r *Repository) ListQuickReplies(adminID uint64) ([]QuickReplyDTO, error) {
 
 // CreateQuickReply 创建快捷回复
 func (r *Repository) CreateQuickReply(adminID uint64, req CreateQuickReplyRequest) (*QuickReplyDTO, error) {
+	ownerID := adminID
+	if req.IsGlobal {
+		ownerID = 0
+	}
 	reply := model.ChatQuickReply{
-		AdminUserID: adminID,
+		AdminUserID: ownerID,
 		Title:       req.Title,
 		Content:     req.Content,
 		SortOrder:   req.SortOrder,
@@ -972,7 +980,7 @@ func (r *Repository) CreateQuickReply(adminID uint64, req CreateQuickReplyReques
 		Title:       reply.Title,
 		Content:     reply.Content,
 		SortOrder:   reply.SortOrder,
-		IsGlobal:    false,
+		IsGlobal:    reply.AdminUserID == 0,
 	}, nil
 }