AIDotNet/lobe-chat ? reverse-engineered prompt

Build me a modern AI chat app that feels like a polished private ChatGPT clone, but lets people switch between different AI providers like OpenAI, Claude, Gemini, Ollama, and other common services. It should support regular text chats, image understanding, voice conversation with speech input and output, and a simple plugin or tool system so the assistant can do more than just reply.

I also want it to feel production ready, with user accounts, multi user support, saved chat history, custom themes, and a mobile friendly layout. Make it work well as a progressive web app too, so it can be installed on phones and desktops. If there are any setup details or current best practices I should know, check the latest docs online and build it in a clean, modern way.

Make the experience easy to self host and easy to use, with a sleek interface and sensible defaults.