fix: verify and rebalance question data

feat: remove Supabase, bundle questions locally, use JSON DB + API

feat: add Spark Micro-Debate Arena

feat: easter eggs — triple-click admin access + TRIVIAMASTER name unlock

feat: add room-based multiplayer, Game Night, and 124 new questions

feat: redesign landing page with floating tiles, hero pillars, scoring transparency

feat: fix question system + add HF Spaces deployment

feat: add --direct mode to seed-questions for Supabase insertion

feat: question system with categories, shuffle, progressive difficulty, and seeder