MuhammadMuzamil-dev/Launch-Desk-Agent ? reverse-engineered prompt

Build me a full stack Next.js app called Launch Desk that turns a rough launch idea into a clear release plan. I want a polished, mission control style interface where I can enter a product brief, audience, launch date, constraints, and known assets, then click generate and watch the plan build live as it streams back.

The app should produce a prioritized launch plan, a risk register, an owner checklist with due dates, launch copy suggestions for different channels, and follow up questions when important details are missing. Use the current OpenAI Agents SDK with streaming updates over SSE, and make the UI show the live agent activity as it runs. Keep the core planning logic testable and deterministic where possible, especially the task extraction, readiness scoring, due date grouping, and copy scaffolding.

Please include a simple health check for whether the API key is set, a clean responsive frontend, and unit tests for the pure planning functions. If anything is unclear, look up the current docs online and follow the modern recommended approach.