style(design): apply Minimal Dark Mode design system\n\n- Switched to complete Dark Mode (OLED-friendly)\n- Established standard color palette matching modern technical aesthetics\n- Changed font to Plus Jakarta Sans for increased legibility\n- Enforced dark mode as default in App.tsx\n- Fixed several React cascading render (setState in useEffect) warnings

package.json

@@ -12,6 +12,8 @@
     "make": "electron-forge make",
     "make:win": "node scripts/build-windows.js",
     "publish": "electron-forge publish",
+    "setup": "node scripts/setup-dev.js",
+    "postinstall": "node scripts/setup-dev.js --check-only",
     "lint": "eslint .",
     "format": "prettier --check .",
     "format:write": "prettier --write .",
@@ -102,6 +104,7 @@
     "@nestjs/microservices": "^11.1.18",
     "@nestjs/platform-express": "^11.1.18",
     "@nestjs/platform-fastify": "^11.0.20",
+    "@nestjs/websockets": "^11.1.19",
     "@nivo/bar": "^0.99.0",
     "@nivo/core": "^0.99.0",
     "@nivo/pie": "^0.99.0",