feat: add array product to gateway (#503)

Author: joshsny

packages/agent/src/utils/gateway.ts

@@ -3,13 +3,13 @@ export function getLlmGatewayUrl(posthogHost: string): string {
   const hostname = url.hostname;
 
   if (hostname === "localhost" || hostname === "127.0.0.1") {
-    return `${url.protocol}//localhost:3308`;
+    return `${url.protocol}//localhost:3308/array`;
   }
 
   // Extract region from hostname (us.posthog.com, eu.posthog.com)
   // app.posthog.com is legacy US
   const regionMatch = hostname.match(/^(us|eu)\.posthog\.com$/);
   const region = regionMatch ? regionMatch[1] : "us";
 
-  return `https://gateway.${region}.posthog.com`;
+  return `https://gateway.${region}.posthog.com/array`;
 }