chore: migrate from prettier to oxfmt

[Copilot]

Replace Prettier with oxfmt for code formatting, matching the migration done in sweetalert2/sweetalert2@27f532e.

Migrated via npx oxfmt@latest --migrate prettier.

• .oxfmtrc.json — new config with all previous prettier settings (printWidth: 120, semi: false, singleQuote: true, etc.) plus $schema for editor autocompletion
• .prettierignore — removed; patterns moved to ignorePatterns in .oxfmtrc.json
• package.json
  • prettier → oxfmt in devDependencies
  • lint: prettier . --check → oxfmt --check
  • lint-fix: prettier . --write → oxfmt
  • Removed prettier config section

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• add-skill.vercel.sh
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/.npm/_npx/ac0ed6aa23b37c1e/node_modules/.bin/skills add REDACTED --skill migrate-oxfmt (dns block)
• download.cypress.io
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node dist/index.js --exec install (dns block)
• https://api.github.com/repos/oxc-project/oxc
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/.npm/_npx/ac0ed6aa23b37c1e/node_modules/.bin/skills add REDACTED --skill migrate-oxfmt (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

---

📱 Kick off Copilot coding agent tasks wherever you are with GitHub Mobile, available on iOS and Android.

[github-actions]

🎉 This PR is included in version 5.1.2 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀