feat: use api enpoints

src/app/[locale]/doc/page.tsx

@@ -2,7 +2,6 @@
 
 import { useState } from "react";
 import { useSession } from "next-auth/react";
-import { env } from "process";
 
 export default function GenerateKeyButton() {
   const [loading, setLoading] = useState(false);
@@ -15,7 +14,7 @@ export default function GenerateKeyButton() {
     setResult(null);
 
     try {
-      const res = await fetch(env.NEXT_PUBLIC_API_URL! + "/keys/generate", {
+      const res = await fetch(process.env.NEXT_PUBLIC_API_URL! + '/keys/generate', {
         method: "POST",
         headers: {
           "Content-Type": "application/json",