feat: add electron-builder build configurations and documentation

package.json

@@ -4,7 +4,10 @@
   "description": "Dekupai - Turunçgil AI ile Kusursuz ve Hizli Dekupaj",
   "main": "main.js",
   "scripts": {
-    "start": "electron ."
+    "start": "electron .",
+    "build:win": "electron-builder --win",
+    "build:mac": "electron-builder --mac",
+    "build:all": "electron-builder --win --mac"
   },
   "keywords": [
     "background-removal",
@@ -15,9 +18,30 @@
   "author": "Antigravity",
   "license": "MIT",
   "devDependencies": {
-    "electron": "^31.3.0"
+    "electron": "^31.3.0",
+    "electron-builder": "^24.13.3"
   },
   "dependencies": {
     "cropperjs": "^1.6.2"
+  },
+  "build": {
+    "appId": "com.turuncgil.dekupai",
+    "productName": "Dekupai",
+    "copyright": "Copyright © 2026 Turunçgil AI",
+    "directories": {
+      "output": "dist"
+    },
+    "files": [
+      "**/*",
+      "!.venv/**",
+      "!node_modules/**"
+    ],
+    "win": {
+      "target": "nsis"
+    },
+    "mac": {
+      "target": "dmg",
+      "category": "public.app-category.graphics-design"
+    }
   }
 }