Add support for Oxlint

[julientechdev]

Name: Oxlint
URL: https://oxc.rs/docs/guide/usage/linter

Oxlint is a very powerful eslint alternative, now considered stable:
https://oxc.rs/blog/2025-06-10-oxlint-stable.html

[rymdbar]

New tools are best added by someone who actually uses the language in question, as basic validation of it actually working is the most important part of the task. With that said, anyone is invited to submit a PR. Most times it is quite easy.

Since oxlint is a language server, :help ale-lint-language-servers should describe how to get started, and hopefully the reference documentation at :help ale-development can be of help. In reality, the most taken pragmatic path is to simply start by copying an existing linter configuration and adapt the command name and its arguments to match. Especially for languages which already have existing similar tools. (In this specific case, my guess is that either biome or deno would serve as good starting points.)

Things start to become rewarding already after creating such a short configuration. That is everything required to start using the tool locally. Posting such a configuration to this ticket would be welcome. (If browsing through other similar issues one learns that there are other tools known to be working with ale, without ale distributing their configuration.)

In case one actually wish to contribute a fully working tool, the test cases needs to be adapted to pass and the documentation must be updated. Again, for a language with pre-existing tools, adding a new is likely mostly an exercise in copy and paste with minor modifications. Documentation will not require writing lengthy prose, but is merely about mentioning the tool and describing its options in the brief way done for the already covered tools.

With oxlint also having a cli mode, one could alternatively start at :help ale-lint instead. Possibly adding configuration for both modes, which I personally think might be unnecessary.

Please feel free to give creating an oxlint configuration a go, and do report back if making in attempt regardless of its outcome.