fix(core): update

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@tsclass/tsclass',
-  version: '4.0.45',
+  version: '4.0.46',
   description: 'common classes for TypeScript'
 }

ts/business/letter.ts

@@ -2,6 +2,13 @@ import * as business from './index.js';
 import * as finance from '../finance/index.js';
 import * as database from '../database/index.js';
 export interface ILetter {
+  versionInfo: {
+    type: 'draft' | 'final';
+    /**
+     * should follow semVer
+     */
+    version: string;
+  };
   incidenceId: string;
   type: 'invoice' | 'notice' | 'warning' | 'verification' | 'contract';
   date: number;