Remove references to the gradio UI

docs/content/docs/index.mdx

@@ -16,14 +16,9 @@ Cua makes every stage of computer-using agent development simple:
 - **Deployment**: Cua cloud gives you a production-ready cloud environment for your assistants
 
 <div className="grid grid-cols-1 md:grid-cols-2 gap-6 mt-8">
-  <Card icon={<Monitor />} href="/quickstart-ui" title="Quickstart (UI)">
-    Try the Cua Agent UI in your browser—no coding required.
-  </Card>
-  <Card icon={<Code />} href="/quickstart-devs" title="Quickstart (Developers)">
+  <Card icon={<Monitor />} href="/quickstart-devs" title="Quickstart (Developers)">
     Build with Python—full SDK and agent code examples.
   </Card>
-</div>
-<div className="grid grid-cols-1 gap-6 mt-6">
   <Card icon={<BookOpen />} href="/libraries/agent" title="API Reference">
     Explore the agent SDK and APIs
   </Card>

docs/content/docs/quickstart-cli.mdx

@@ -340,6 +340,4 @@ You can ask your agent to perform actions like:
 
 ---
 
-For advanced Python usage and GUI interface, see the [Quickstart (GUI)](/quickstart-ui) and [Quickstart for Developers](/quickstart-devs).
-
 For running models locally, see [Running Models Locally](/agent-sdk/local-models).