增加用户免押额度筛选

backend/internal/modules/adminuser/repository.go

@@ -61,6 +61,9 @@ func applyUserFilter(tx *gorm.DB, query ListQuery) *gorm.DB {
 	if query.Status != "" {
 		tx = tx.Where("u.status = ?", query.Status)
 	}
+	if query.HasDepositFreeQuota {
+		tx = tx.Where("u.deposit_free_quota_cent > 0")
+	}
 	if keyword := strings.TrimSpace(query.Keyword); keyword != "" {
 		like := "%" + keyword + "%"
 		// 关键词为纯数字时一并按用户 ID 精确匹配