Business Idea League — Product Hunt meets fantasy football meets a public startup studio

Build an open-source "Business Idea League" for a podcast or creator audience. The app should turn business ideas into a public game where listeners can submit, scout, rank, and back ideas before any product is built. Core concept: A creator posts business ideas. The audience acts like a fantasy sports league for startups: they draft ideas, allocate credits, vote on which ones are most promising, and track which ideas actually become products, revenue, or public builds. Build a working demo with: 1. Idea submission page — Users can submit a short business idea, target customer, pricing guess, and why now. 2. AI-generated idea card — For each idea, generate a structured business card with: one-line description, target customer, pain point, simple monetization model, distribution strategy, 7-day validation plan, estimated build difficulty, estimated build cost, biggest risk, and "why this could be big". 3. Public draft board — A ranked list of ideas with votes, comments, estimated build cost, validation status, and whether the idea is open, funded, building, launched, or dead. 4. Backing mechanism — Users can allocate demo credits to ideas they believe in. The highest-backed ideas rise up the leaderboard. 5. Scout leaderboard — Track users who spot good ideas early. If an idea later gets funded, built, or marked successful, early backers and scouts gain reputation. 6. Build pipeline page — For funded ideas, show a public build page with milestones, spend, artifacts, files, and status updates. 7. Validation tracker — Before building, each idea can run lightweight validation: landing page clicks, waitlist signups, survey responses, manual notes, and founder comments. 8. Creator/admin dashboard — Approve ideas, edit AI summaries, mark validation progress, start a build, or kill an idea with a public reason. 9. Demo content — Seed with fictional business ideas inspired by common podcast themes: boring businesses, AI tools, newsletters, marketplaces, local services, data products, niche communities. 10. Export — Export all public idea data as JSON/CSV. The product should feel like "Product Hunt meets fantasy football meets a public startup studio." Important constraints: Do not scrape podcast transcripts in v1. Do not depend on any specific podcast brand. Make it white-label so any creator/community can use it. Use mock payments and demo credits for now. Make the first version simple, fast, and inspectable. Ship with: working web app, demo data, admin interface, README, setup instructions, database schema, API routes, tests where practical, MIT license.