openchamber/openchamber ? reverse-engineered prompt

Build me an app called OpenChamber for OpenCode, with a desktop and web experience that lets me chat with an AI agent, review diffs, manage runs, and keep working across devices.

I want a clean interface where I can start a session, see the conversation history, fork or undo parts of the chat, and inspect tool output like file changes, terminal logs, and permissions. It should support running multiple agents from one prompt, basic Git actions like commits and PRs, and a plan view where I can outline work before building it. Make it work well on desktop and in the browser, with a mobile friendly layout for the web version.

If it makes sense, include notifications, theme support, and a simple way to connect to a local or remote OpenCode instance. Look up the current docs online if you need to, then wire up the app so it feels polished and ready to use.