salaron/sunlight ? reverse-engineered prompt

Build me a working server emulator for Love Live! School Idol Festival in C#.

I want it set up as a clean ASP.NET based solution, with shared code, database access, and endpoint handling separated in a way that makes sense. The goal is to have a local private server that can respond to the game’s expected requests, connect to a database, and be easy to run and test on my machine.

Please make it practical and complete enough to start using, with sensible defaults, basic config, and any needed scaffolding for the main API flows. If you need to look up current docs or protocol details online to fill in gaps, do that. Keep the code straightforward and organized so it’s easy to extend later.