Create copilot serve

### Describe the feature or problem you'd like to solve

create a local website that connects with the running instance of copilot cli

### Proposed solution

Create a sample website that connects with copilot agent. Similar feature as `opencode serve`.
[link](https://opencode.ai/docs/server/)

### Example prompts or workflows

_No response_

### Additional context

- takes advantage of copilot sdk