Backtest every indicator. Invent new ones. Race them live.

A live workbench for the indicator library that powers the /markets technicals panel. Each indicator emits a buy / sell / neutral signal at every bar; the lab replays history at configurable horizons and reports hit-rate, average return, Sharpe, drawdown — split by market regime (trending vs ranging). Stack indicators into composite signals; the highest-edge variants get promoted to the live paper-trade walk.