todo:

- [ ] add package limit per user (able to be modified on demand)
- [x] add health endpoint
- [x] test s3 support
- [x] improve nginx config
- [ ] add private package loading via user token on runtime/api
- [x] standardize error responses
- [ ] standardize responses
- [ ] migrate to pocketbase v0.12.1
  - [ ] use filesystem.GetFile()
  - [ ] use filesystem.NewFileFromBytes()?