{"service":"DailyVerse API","status":"ok","endpoints":{"welcomeEmail":{"method":"POST","path":"/api/send-welcome-email","body":{"email":"string","username":"string"}},"questions":{"method":"GET","path":"/api/questions","query":{"universes":"comma-separated universe ids","since":"optional ISO timestamp"}},"importQuestions":{"method":"POST","path":"/api/admin/import-questions","note":"Server-side admin only (authenticated import)."},"challenges":{"method":"GET","path":"/api/challenges","query":{"code":"challenge code"}},"createChallenge":{"method":"POST","path":"/api/challenges","body":{"action":"create","universeId":"string","questionIds":"string[]"}},"challengeLink":{"method":"GET","path":"/challenge/:code","note":"Web landing → dailyverse:// deep link"}}}