add: nodemon configuration for developpment env

package.json

@@ -15,7 +15,9 @@
   },
   "main": "main.js",
   "scripts": {
+
     "start": "electron --trace-warnings .",
+    "dev": "nodemon --watch server --watch app --watch main.js --watch config.js --ext js,json --exec \"electron .\"",
 
     "build": "electron-builder",
     "build:win": "electron-builder --win",
@@ -50,6 +52,7 @@
     "electron": "^43.3.0",
     "electron-builder": "^26.15.3",
     "jest": "^30.4.2",
+    "nodemon": "^3.1.14",
     "playwright": "^1.62.1"
   },
   "build": {