feat: add 2-stage update system (asar swap + full installer)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "krunker-civilian-client",
-  "version": "0.7.5",
+  "version": "0.7.6",
   "description": "Cross-platform Krunker game client",
   "main": "dist/main/index.js",
   "homepage": "https://github.com/bigjakk/Krunker-Civilian-Client",
@@ -17,6 +17,7 @@
     "dist:win": "npm run build && electron-builder --win",
     "dist:linux": "npm run build && electron-builder --linux",
     "dist:all": "npm run build && electron-builder --win --linux",
+    "build:asar": "node scripts/build-asar.js",
     "clean": "rimraf dist out",
     "lint": "eslint src/",
     "prepare": "husky"
@@ -28,6 +29,7 @@
     "electron-store": "^8.2.0"
   },
   "devDependencies": {
+    "@electron/asar": "^4.2.0",
     "@eslint/js": "^10.0.1",
     "@types/node": "^22.0.0",
     "electron": "npm:electron-nightly@42.0.0-nightly.20260227",