Concurrency Issues with doc.save

[uncleJim21]

nip-105-server/server.js

Line 232 in d92adc1

await doc.save();

@CoachChuckFF I noticed an issue with this when trying to spin up a new service.

It seems that the way you're doing it can actually cause the same doc to try to get saved more than once and crash the server. Likewise you are also assuming that the user will continually poll the endpoint bc you seem to give them an out of date state. I get that it works to first order but may be a good idea to refactor this.