AhmedFergany1/Bustan-API — reverse-engineered prompt

Build me the backend API for a project called Bustan using the existing C# backend folder. Since there isn’t a README, please first inspect the code that’s already there and continue in the same style instead of replacing everything.

I want a working API that can run locally, has clear endpoints, handles normal errors nicely, validates incoming data, and returns simple JSON responses that a frontend or mobile app can use. Set up any missing configuration needed for local development, make sure the project builds without errors, and add basic sample data only if it fits what you find.

Please keep the code clean and easy for a beginner to understand, and include short run instructions so I know how to start it and test the main routes. Look up current docs online if you need to.