Hello, thank you for reporting this issue.
I recall having this issue at some point, because nvm only puts node on the PATH for “login” shells. Did you try to launch PyCharm from a terminal?
I also notice that you are using connected mode with a rather old version of SonarTS, I strongly advise that you update to the latest SonarJS/SonarTS couple if possible: on macOS, the newer versions use the run-node utility to reliably find the Node runtime.