Review Summary

Your implementation is approved. The chat application successfully meets all requirements: Node.js/Socket.IO server with room management (create, rename, join, delete), username persistence via localStorage, message display with author/time/text format, and full message history retrieval when users join rooms via the room:history event. All four files (server.js, main.js, style.css, index.html) are properly structured and communicate correctly using Socket.IO events. The code demonstrates solid architecture and proper real-time communication patterns. Great work on implementing a complete, functional chat application!

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