interactions with ignored/untracked/tracked files

[martinetd]

I've been playing with jj again after noticing the new snapshot.auto-track setting, and found interacting with new files annoying overall.
This is a bit dump-all, I've browsed through the issues for a couple of hours (obviously great use of my $work time!) and this is half feedback and half questions, so making it a discussion instead of an issue.
Happy to open sub-issues as FR later if some points are worth tracking :)

• if using auto-track none(), typing jj file track foo everytime is a mouthful - perhaps an alias like jj add might make sense by default? (I've added an alias for now, but it has no completion, so that's also annoying on its own..)
• without auto-track none, creating a file, making it be tracked with jj st, then adding it to .gitignore doesn't automatically untrack it without jj file untrack -- this is obviously a feature (and documented in docs/git-compatibility.md), because if you want to explicitly track an ignored file jj can't go around automatically remove it back the next command, but I feel that UX-wise we should figure out if the file was added explicitly and keep it or automatically tracked and drop it at this point.
  This confused me quite a bit of time, especially as jj st in a colocated repo will also add the file to the index (or wherever it is git finds it) and further git status will still list the file in "Changes not staged for commit" as well
• There doesn't seem to be anything like jj file list --ignored ? (akin to git status --ignored)

Thanks!