{"service":"orderbook_imbalance","pairs":["btc/usd","eth/usd"],"exchanges":["binance","bybit","okx","deribit","hyperliquid"],"metrics":["spread_bps","tob_imbalance","depth_imbalance","depth_ratio","sweep_cost","depth_collapse"],"resolution":"60s (5s during stress)","price":"$0.03"}