fix(copilot): fix origin (#1015)

* Fix v1

* Use env var

* Lint

README.md

@@ -158,6 +158,13 @@ cd apps/sim
 bun run dev:sockets
 ```
 
+## Copilot API Keys
+
+Copilot is a Sim-managed service. To use Copilot on a self-hosted instance:
+
+- Go to https://sim.ai → Settings → Copilot and generate a Copilot API key
+- Set `COPILOT_API_KEY` in your self-hosted environment to that value
+
 ## Tech Stack
 
 - **Framework**: [Next.js](https://nextjs.org/) (App Router)