v0.1.0 — initial release

Initial public release. Backtest & execution engine extracted from a live Binance USDT-M futures bot, plus:

• tick-size-safe price rounding folded in from the private live system (was a bug in the quantbox-engine predecessor)
• optional MCP server (pip install binance-quant-engine[mcp]) for running backtests from any MCP-compatible agent

Supersedes quantbox-engine.