landsmc/lands-old ? reverse-engineered prompt

Build me a Minecraft server project for Lands Inc that ties together a few different game modes and support systems.

I want a shared core with separate parts for things like lobby, PvP, duels, bedwars, auth, and a small aquatic mode, all working cleanly together. The main goal is to have a reusable base that makes it easy to run and manage a network of mini games with login, matchmaking, and common server features in one place.

Please set it up so the project is organized and easy to extend later, with the shared logic in one place and the game specific pieces kept separate. If anything depends on current Bukkit or Bungee docs, feel free to look those up online and use the latest stable approach.

Make it feel like a real server project, not just empty modules, so I can start plugging in gameplay, commands, and player flow right away.