Adds a new locale to RunCat365. Use when adding a new language, creating a Strings.{lc}.resx file, registering a CultureInfo, or extending SupportedLanguage.cs with a new entry.
Creates a GitHub Pull Request for RunCat365 following the project's PR template. Use this skill whenever the user wants to open, submit, or create a PR, pull request, or wants to propose changes to the main branch.