docs: update BYOA article — new code sample link and dashboard screenshots (#751)

* docs: update BYOA article with new code sample link and dashboard screenshots

* fix: swap misnamed BYOA screenshot files

Author: ravibits

src/assets/docs/mcp/byoa-api-credentials.png

@@ -219,7 +219,9 @@ curl --location '{{env_url}}/api/v1/connections/{{connection_id}}/auth-requests/
 - Replace placeholders like `{{env_url}}`, `{{connection_id}}`, `{{login_request_id}}`, and `{{access_token}}` with actual values.
 - Only `sub` and `email` are required fields; all other properties are optional.
 
-**Finding your `connection_id`:** Open **Dashboard > MCP Servers > [your server] > Advanced Configurations > Connection ID**. It starts with `conn_` and is distinct from the MCP server's resource ID (which starts with `res_`). Do not use the resource ID here.
+**Finding your `connection_id`:** Open **Dashboard > MCP Servers > [your server] > Configuration > Advanced Configuration > Connection ID**. It starts with `conn_` and is distinct from the MCP server's resource ID (which starts with `res_`). Do not use the resource ID here.
+
+![MCP Server Advanced Configuration showing BYOA settings — Login Endpoint URL, Connection ID, User Info Post URL and Redirect URL](@/assets/docs/mcp/byoa-configuration.png)
 
 **Using raw HTTP instead of the SDK:** Making direct HTTP calls to this endpoint is a fully supported alternative to using an SDK. If the SDK introduces transitive dependency conflicts in your project, use the cURL tab above for the equivalent request.
 
@@ -252,6 +254,4 @@ curl --location '{{env_url}}/api/v1/connections/{{connection_id}}/auth-requests/
 
 :::
 
-**Download our sample MCP Server:** We have put together a simple MCP server that you can check out and run it locally to test the end to end functionality of a working MCP server complete with authentication and authorization. You can download and execute a sample MCP server implementation from <a href="https://github.com/scalekit-inc/mcp-auth-demos" target="_blank" rel="noopener">GitHub</a>.
-
-**Try out the BYOA MCP server**: Scalekit provides a demo MCP server that shows how to implement your own auth integration. Clone the <a href="https://github.com/scalekit-inc/byoa-demo-mcp" target="_blank" rel="noopener">BYOA MCP server</a> to test end-to-end authentication in your environment.
+**Try out the BYOA MCP server**: Clone the <a href="https://github.com/scalekit-inc/mcp-auth-demos/tree/main/byoa-mcp-node" target="_blank" rel="noopener">byoa-mcp-node sample</a> — a working Node.js MCP server with a custom login page, Scalekit token validation, and custom claims flowing through to tool handlers. Follow the README to run it locally end-to-end.