{"message":"Crypto price backend running","available_symbols":["btc","eth","sol","doge"],"endpoints":{"short":"/api/{symbol} (4h from CoinGecko + 1d)","long_daily":"/api/{symbol}/daily (from 2024-12-24, gap-healed from hourly)","open":"/api/btc/open (BTC daily opens aligned to 00:00 America/New_York)","admin_rebuild":"/admin/rebuild-daily (force full long-daily + open rebuild)"}}