Utilise PDM scripts for the API

[dhruvkb]

Problem

The frontend has a very minimal justfile. This is because a lot of jobs are described using package.json scripts and most of them are invoked with just frontend/run ....

This is also possible for a lot of jobs in the API, which can be invoked using PDM scripts that will automatically enable the proper Python environment and call bins as if they were on the $PATH.

Description

Utilise PDM scripts to reduce the number of recipes in the justfile, specifically recipes of the form pdm run python ..., a clear indicator that PDM is activating the virtual environment and then calling the command.

Alternatives

If the general consensus is that the opposite is more preferable, we can reevaluate this position for the frontend which has ~50 scripts in frontend/package.json!