daulathussain/chat-dapp-starter-file — reverse-engineered prompt

Build me a simple Web3 chat app from this starter project. I want a site where people can connect with MetaMask, get recognized by their wallet, and send private messages in a clean chat interface. Use the existing smart contract setup so the chat data flows through the blockchain side of the app, and make sure the front end and contract work together from start to finish. It should be easy to run locally, and it should also be possible to deploy the contract to a test network like Mumbai if that fits this project. Show clear states for connecting a wallet, loading chats, and sending messages so it feels smooth to use. Please wire up the pages, components, context, and contract logic that are needed, and add simple polished styling so it feels like a real app instead of a rough demo. If anything is unclear, look up the current docs online and make the most sensible choices.