Print errors in more standard format so editors and other tools can better automatically parse them

[lolpack]

Describe the Bug

pyrefly errors CLI does not fit the fairly universal "error in file" format that mypy or gcc or most Linux toolchains use, which is a line like /home/rec/git-typing/pytorch/torch/_inductor/lowering.py:366:36-51, without any prefix like ERROR .

That specifically excludes emacs and quite possibly other vi-family editors. (The net result is that in emacs, I can't click on your errors to go to the file and line.)

cc @rec

Sandbox Link

No response

(Only applicable for extension issues) IDE Information

No response