pri1311/crunch ? reverse-engineered prompt

Build me a simple real time group chat app like Crunch, with a clean landing page, sign up and login screens, and a main chat area that feels easy to use on desktop and mobile.

I want users to be able to create profiles, make workspaces, join workspaces, and chat inside multiple channels in each workspace. It should support live messaging with Socket.IO, plus sending images in chat. The design should be modern, simple, and responsive, with a nice sidebar for workspaces and channels and a clear conversation area.

Use Flask for the backend and keep the front end in plain HTML, CSS, and JavaScript, with Bootstrap if it helps. Store data in SQLite and set it up so I can add Cloudinary credentials for image uploads. If you need current setup details, look up the latest docs online.