UI Checkstyle / ESLint + Prettier + organize-imports

The UI Checkstyle GitHub workflow (.github/workflows/ui-checkstyle.yml) runs a single checkstyle job (after check-changes + authorize gates) whose steps gate six checks, each on only the files the PR changed:

1. ESLint + Prettier + organize-imports on src (openmetadata-ui/src/main/resources/ui/src/...)
2. Licence header check
3. i18n sync (yarn i18n produces no diff)
4. app-docs (yarn generate:app-docs produces no diff)
5. ESLint + Prettier + organize-imports on playwright (.../ui/playwright/...)
6. ESLint + Prettier on core-components (openmetadata-ui-core-components/src/main/resources/ui/src/...)

Any failing step fails the required ui-checkstyle status check. Each lint step reformats the changed files and fails if the reformat produces a diff — i.e. the committed tree must already be formatted. This skill runs the same sequence locally so CI never has to ask.