Have you tried the Jetbrains agent, I think it’s called Jennie?
I am trying it right now and it seems decent enough but I haven’t tried Cursor as I don’t really like vs code.
Using Windsurf plugins in JB ides has been working for me, albeit not as powerful yet as the Windsurf VS Code fork.
Last time I tried, it didn't support RubyMine (whomp)