Tennis Court Booking Assignment

Given a list of tennis court bookings with start and finish times, return a plan assigning each booking to a specific court. Ensure each court is used by only one booking at a time and use the minimum number of courts.

Follow-ups:

1. After each booking, a fixed amount of time X is needed for maintenance before the court can be used again
2. Maintenance is only required after X cumulative minutes of usage

This is a signature Atlassian coding question that tests interval scheduling and greedy algorithms.