Add options stats holding time metrics and lightweight charts.

Show average hold duration for wins and losses, open positions, and CSS ring/bar visualizations in the stats tab.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/options/options_register.py

@@ -666,43 +666,9 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
         ex, err = _require_options_ex(cfg)
         if ex is None:
             return jsonify({"ok": False, "msg": err})
-        from lib.instance.instance_embed_context_lib import profit_loss_ratio_from_averages
+        from lib.options.options_stats_lib import compute_options_stats
 
-        conn = cfg["get_db"]()
-        try:
-            init_options_tables(conn)
-            rows = conn.execute(
-                """
-                SELECT realized_pnl FROM options_trades
-                WHERE status = 'closed' AND realized_pnl IS NOT NULL
-                """
-            ).fetchall()
-        finally:
-            conn.close()
-        wins: list[float] = []
-        losses: list[float] = []
-        for row in rows:
-            pnl = float(row["realized_pnl"])
-            if pnl > 0:
-                wins.append(pnl)
-            elif pnl < 0:
-                losses.append(pnl)
-        total_closed = len(wins) + len(losses)
-        win_rate = round(len(wins) / total_closed * 100, 2) if total_closed else 0
-        avg_win = sum(wins) / len(wins) if wins else None
-        avg_loss = sum(losses) / len(losses) if losses else None
-        total_profit = round(sum(wins), 4) if wins else 0.0
-        total_loss = round(abs(sum(losses)), 4) if losses else 0.0
-        return jsonify(
-            {
-                "ok": True,
-                "total_closed": total_closed,
-                "win_rate": win_rate,
-                "profit_loss_ratio": profit_loss_ratio_from_averages(avg_win, avg_loss),
-                "total_profit": total_profit,
-                "total_loss": total_loss,
-            }
-        )
+        return jsonify({"ok": True, **compute_options_stats(cfg["get_db"])})
 
     @app.route("/api/options/history/<int:trade_id>", methods=["DELETE"])
     @lr