修复缺少的CSS自动Scheme导出字段定义。

src/material-3-scheme.ts

@@ -55,6 +55,7 @@ export type MaterialDesign3SchemeStorage = {
   source?: MaterialDesign3SchemeSource;
   scheme?: MaterialDesign3Scheme;
   cssVariables?: string;
+  cssAutoSchemeVariables?: string;
   scssVariables?: string;
   jsVariables?: string;
 };