add dev build mode

plugin/kintone-addins/package.json

@@ -6,6 +6,7 @@
   "scripts": {
     "dev": "vite",
     "build": "tsc && vite build && xcopy dist\\*.js ..\\..\\backend\\Temp\\ /E /I /Y",
+    "build:dev":"tsc && set \"SOURCE_MAP=true\" && vite build && xcopy dist\\*.js ..\\..\\backend\\Temp\\ /E /I /Y",
     "preview": "vite preview"
   },
   "devDependencies": {

plugin/kintone-addins/vite.config.js

@@ -1,5 +1,6 @@
 // vite.config.js
 import { defineConfig } from 'vite'
+const sourcemap = process.env.SOURCE_MAP==='true';
 
 export default defineConfig({
   build: {
@@ -10,6 +11,6 @@ export default defineConfig({
         // assetFileNames:'alc_kintone_style.css'
       }
     },
-    sourcemap:true
+    sourcemap:sourcemap
   }
 })