• React 19 and TypeScript with a responsive master-detail workflow.
• Search and filters for Ready, Needs attention, and Blocked releases.
• Interactive checklists and blockers with readiness recalculated immediately.
• Native controls, keyboard-friendly interactions, text-plus-color status, reduced-motion and high-contrast considerations.
• Production build validation, render tests, linting, GitHub Actions CI, and Cloudflare-compatible delivery.
• Clearly labelled fictional local sample data; no backend, account, tracking, or persistence.