feat: update next.config.ts for standalone output and enhance package.json scripts for local and test environments

next.config.ts

@@ -1,7 +1,7 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
-  /* config options here */
+  output: "standalone",
 };
 
 export default nextConfig;

package.json

@@ -4,9 +4,13 @@
   "private": true,
   "scripts": {
     "dev": "next dev",
+    "local": "dotenv -e .env -- next dev",
+    "test": "dotenv -e .env.test -- next dev",
     "build": "next build",
+    "build:local": "dotenv -e .env -- next build",
     "build:production": "dotenv -e .env.production -- next build",
     "build:test": "dotenv -e .env.test -- next build",
+    "prod": "dotenv -e .env.production -- next start",
     "start": "next start",
     "lint": "eslint"
   },