fix: update fetch options to include target URL in buildRelayRequest

vercel.json

@@ -2,11 +2,5 @@
 	"$schema": "https://openapi.vercel.sh/vercel.json",
 	"bunVersion": "1",
 	"installCommand": "bun install",
-	"outputDirectory": "dist",
-	"rewrites": [
-		{
-			"source": "/api/(.*)",
-			"destination": "/api/index.ts"
-		}
-	]
+	"outputDirectory": "dist"
 }