The main idea behind this refactor is make the
API less especialized for specific use of out internal
submidules and make it more general and usable
for more general purposes (per example cache)
Replace general usage of virtual threads with platform threads
and use virtual threads for lightweight procs such that websocket
connections. This decision is made mainly because virtual threads
does not appear on thread dumps in an easy way so debugging issues
becomes very difficult.
The threads requirement of penpot for serving http requests
is not very big so having so this decision does not really affects
the resource usage.
This upgrade also includes complete elimination of use spec
from the backend codebase, completing the long running migration
to fully use malli for validation and decoding.
