{"message":"Hello World! Ambergris Backend is running.","version":"1.0.0","timestamp":"2026-04-26T08:23:01.142Z","endpoints":{"health":"/api/health","session":{"challenges":"GET /api/session/challenges","start":"POST /api/session/start"},"upload":{"config":"GET /api/upload/config","upload":"POST /api/upload","accessUrl":"POST /api/upload/access-url","analysis":"GET /api/upload/analysis/:fileName","stats":"GET /api/upload/stats"}}}