How to embed various plugins in a PhpStorm project?

Question

JavaScript

There is a project on phpstorm most of the project is JavaScript. Previously, I have never used any plugins that are installed via npm (in general, this is a dark forest for me). I always managed with solutions that allow you to simply stick the js file on the page creating a new class to solve some problem.
Now I decided to study all the same the possibility of using npm, if I understood correctly, then this is a kind of manager that allows you to collect everything before uploading to the server and fully automate some processes, for example, css js minify and many others.
Such a question, if the project already exists, is it possible to start using npm on it to install, for example, the same JS & CSS minify, so that you can do it not in online services manually, but when you press Ctrl + S, everything was done by itself and uploaded to the server?
I’ll also be glad if you tell me good articles for beginners in working according to this scheme, since I’ve already gotten used to working with editors since 2000, and I still didn’t want to study this topic, but I feel that it’s time for all the necessary open source tools to be made as plugins for npm and webpack :)