dohoro-git/se-assignment ? reverse-engineered prompt

Build me the rest of this fleet maintenance app so it works end to end from a clean checkout with Docker Compose.

I already have the starter backend and database, and I need the missing maintenance features, plus the React frontend that ships with the full stack. The app should let a tenant see only their own vehicles and maintenance records, create a maintenance record for one of their vehicles, and automatically mark a vehicle as due for service when the mileage threshold is reached. Keep the backend organized the way the starter expects, with routes, controllers, services, and models in that order, and use the existing error handling and tenant scoping patterns.

For the frontend, make a simple polished interface that shows vehicles and maintenance info for the logged in tenant, and wire it into the existing compose setup so docker compose up --build starts everything together without any manual steps. If you need to check current docs or best practices while building, go ahead and look them up online.