Recent taker fills for one coin
get
/v1/markets/hyperliquid/coins/{coin}/tradesHL `recentTrades` window. `limit` clamped to [1, 200]; default 50. Cached 5s. `side` is `buy` when an aggressor lifted the ask, `sell` when one hit the bid. `txHash` is the HL chain transaction hash (32-byte hex).