feat: enhance Electron build process and server preparation

- Added new build scripts for Electron targeting Windows, macOS, and Linux.
- Updated the main build script to include server preparation steps.
- Introduced a new script to prepare the server for bundling with Electron, including cleaning previous builds and installing production dependencies.
- Modified the Electron main process to verify server file existence and improved error handling.
- Updated .gitignore to exclude the new server-bundle directory.

apps/app/package.json

@@ -20,7 +20,10 @@
     "dev:electron": "concurrently \"next dev -p 3007\" \"wait-on http://localhost:3007 && electron .\"",
     "dev:electron:debug": "concurrently \"next dev -p 3007\" \"wait-on http://localhost:3007 && OPEN_DEVTOOLS=true electron .\"",
     "build": "next build",
-    "build:electron": "next build && electron-builder",
+    "build:electron": "node scripts/prepare-server.js && next build && electron-builder",
+    "build:electron:win": "node scripts/prepare-server.js && next build && electron-builder --win",
+    "build:electron:mac": "node scripts/prepare-server.js && next build && electron-builder --mac",
+    "build:electron:linux": "node scripts/prepare-server.js && next build && electron-builder --linux",
     "start": "next start",
     "lint": "eslint",
     "test": "playwright test",
@@ -79,13 +82,13 @@
     "@types/react": "^19",
     "@types/react-dom": "^19",
     "concurrently": "^9.2.1",
-    "electron": "^39.2.6",
+    "electron": "39.2.7",
     "electron-builder": "^26.0.12",
     "eslint": "^9",
     "eslint-config-next": "16.0.7",
     "tailwindcss": "^4",
     "tw-animate-css": "^1.4.0",
-    "typescript": "^5",
+    "typescript": "5.9.3",
     "wait-on": "^9.0.3"
   },
   "build": {
@@ -103,11 +106,17 @@
     ],
     "extraResources": [
       {
-        "from": ".env",
+        "from": "server-bundle/dist",
+        "to": "server"
+      },
+      {
+        "from": "server-bundle/node_modules",
+        "to": "server/node_modules"
+      },
+      {
+        "from": "../../.env",
         "to": ".env",
-        "filter": [
-          "**/*"
-        ]
+        "filter": ["**/*"]
       }
     ],
     "mac": {