allow connecting via `connectionString`

[psteinroe]

Discussed in #572

^{Originally posted by gnakic October 25, 2025}
Either using a dev branch of my db instance or a local docker container, I need to add the following to jsonc config
?sslmode=require&channel_binding=require
but not sure where exactly. Does anyone know? Adding those as query params to either database or host does not work.