feat: Modify private attr adding readonly

src/command/convert.ts

@@ -7,8 +7,8 @@ import * as path from 'path';
 
 
 export class Convert implements Walker {
-  private config: Config;
-  private setting: Setting;
+  private readonly config: Config;
+  private readonly setting: Setting;
 
   constructor(config: Config, setting: Setting) {
     this.config = config;

src/command/create.ts

@@ -4,7 +4,7 @@ import * as init from 'src/command/init';
 
 
 export class Create {
-  private appPath: string;
+  private readonly appPath: string;
 
   constructor(appPath: string) {
     this.appPath = appPath;

src/command/init.ts

@@ -47,7 +47,7 @@ const deafultConfig = {
 };
 
 export class Init {
-  private appPath: string
+  private readonly appPath: string
 
   constructor(appPath: string) {
     this.appPath = appPath;

src/command/merge.ts

@@ -6,7 +6,7 @@ import {SystemLogger} from 'src/logger/systemLogger';
 
 export class Merge {
   static readJson: (input: string) => Promise<object>;
-  private name: string;
+  private readonly name: string;
   private mergeEachFn: (target: Test, commands: Array<Command>) => void;
 
   constructor(name: string) {