Standartize on Python tooling #15
Description
Currently, some of the subprojects utilize Hatch, while others are simply plain requirements files. It makes sense to unify on a common tooling - perhaps continue to use hatch or even switch to uv.
P.S. It would also be useful to discuss the repository structure - does it make sense to have a subdirectory per data source vs. having everything in one place and having optional dependencies?