0.4.0

Added ✨

• Equity curve access — backtest results now expose the equity curve, which was previously fetched from the backend but silently discarded by the MCP layer.
  • New get_equity_curve tool returns the curve of a COMPLETED job as compact JSON (parallel arrays t[] = epoch-millis timestamps, equity[] = account equity). Curves longer than maxPoints (default 500, max 5000) are downsampled, always preserving the first/last points and the global min and max (worst drawdown and peak).
  • get_job_status gains an optional includeEquityCurve flag (default false) that appends the curve, downsampled to ~200 points, to the status summary.