feat: use more default values

app/api/command/route.ts

@@ -4,6 +4,10 @@ import { NextResponse } from 'next/server';
 
 export async function POST(req: Request) {
   try {
+    if(!process.env.API_KEY){
+      throw new Error('API KEY  environment variable is not set')
+    }
+
     const body = await req.json();
 
     const result = RequestSchema.safeParse(body);