Replace BoltDB with sqlite

[finn-tbd]

sqlite will behave a lot more like postgres and our dev environment should at least roughly match our production environment. ref.

[frankhinek]

This would be great as I'd like to explore using something like the following as an alternative way of achieving low latency resolution and high availability for those that don't wish to rely on AWS/GCP cloud services:

• https://github.com/tursodatabase/libsql
• https://fly.io/docs/litefs/