Replace the inline 5-job ci.yml with a thin caller of the org reusable
workflow ci-typescript-frontend.yaml. The standards gate, changed-line
guard, format/lint/build, unit tests, and Playwright browser smoke now
live centrally in Sea-Haven-Industries/.github and are maintained once.
Renames ci.yml -> ci.yaml (kebab-case .yaml convention) and triggers on
pull_request and push to main and dev, so this branch keeps CI coverage.
The reusable workflow runs as a single `ci` job, so this caller emits the
`ci / ci` status context. Branch-protection rulesets for main and dev must
have their required checks switched from the old job names (Metadata and
standards, Code quality, Build, Unit tests, Browser smoke) to `ci / ci`.
