Add support for proxy forwarding

### 🚀 The feature, motivation and pitch

currently, its not possible to forward ports in code-editor. It would be nice to have it so that you can render dashboards or many other things that require port forwarding.

### Use case description

_No response_

### Alternatives

_No response_

### Additional context

_No response_

The issue does not identify any files, tests, or entry points. Start by locating the code-editor integration and its existing networking or proxy mechanisms, then define how forwarded ports should be exposed and verified so dashboards and other port-based applications are reachable.

Written by the indexing model from the issue text.