Migration to EffectTS

[aeplay]

Low hanging fruit:

• [ ] ~~Use Effects everywhere I always wanted Results or Promises with error types~~
• [ ] Expose an effectful high level API
• [ ] ~~Use Effect Configuration~~
• [x] #212

More effort but also higher reward

• [ ] ~~completely make cojson effectful, model CoValues as concurrent actors using EffectTS~~
• [ ] ~~base the high level effectful API on the now underlying effectful implement~~

[aeplay]

Small update: after introducing Effect into a bunch of places, I'm running into some issues with performance, logging and debuggability

So for the time being, I'll do #240 but provide #239