h5i-db

Use when working with an h5i-db database — an embedded, versioned time-series database for quant research, driven by the `h5i-db` CLI or the `h5i_db` Python package. Covers creating a database and loading Parquet or CSV tick data, orienting in an existing one, querying it (SQL, ASOF joins, OHLCV/VWAP rollups, time travel) under a context budget, running look-ahead-free backtests, and previewing destructive changes before they land.