[Feature]: Support ACP (Agent Client Protocol)

[Happily-Coding]

1. Why Do You NEED This Feature?

I find the current UI uncomfortable and the setup process not streamlined, specially on windows.

2. What Is NOT Possible Right Now?

To work comfortably with the agent.
I get the feeling the agent is solid, but without a comfortable UI it falls behind.

3. What WILL Be Possible With This Feature?

To use any UI the user is comfortable with that supports ACP, for example Zed, Jetbrains IDEs, Goose, etc, enabling many users to work comfortably in their chosen environment.

Proposed Solution (User Experience)

• Implement ACP, so that ACP clients such as Zed, Jetbrains IDEs, Goose can connect, and provide a better known, and more comfortable user experience

Alternatives Considered

• Create an APP, and expand and improve the extensions.
• Seriously improve the UI and the setup process, specially for windows
  I think implementing ACP is likely more sustainable and a better experience.

Feature Category

CLI/UX

Priority/Impact

Critical - Blocking my work

Examples from Other Tools

• Gemini CLI
• Codex
• Opencode
• And many others.

Additional Context

No response

Pre-submission Checklist

• I have searched existing issues and confirmed this is not a duplicate
• I am willing to submit a PR to implement this feature