The time to harvest the 3 data files goes from 5 min. and 20 seconds. to 20 seconds, so it's a huge win, for a small additional complexity.

Also:
- configure actuator for more information
- use Import instead of SpringBootTest to add config classes to tests

also define the chema using annotations, although that doesn't seem to do exactly what we want

ng serve now proxies all /api and /actuator requests to the backend