Balance for bot (#20)

* Add bot balance

* Update amount to trade

* fix initial trading balance

* Update MM modal

* fix backtest

* stop bot if no more balance

* Add constant for minimum trading

* Add constant

src/Managing.Api/Controllers/BacktestController.cs

@@ -93,17 +93,6 @@ public class BacktestController : BaseController
         return Ok(_backtester.DeleteBacktestByUser(user, id));
     }
 
-    /// <summary>
-    /// Deletes all backtests.
-    /// </summary>
-    /// <returns>An ActionResult indicating the outcome of the operation.</returns>
-    [HttpDelete]
-    [Route("deleteAll")]
-    public ActionResult DeleteBacktests()
-    {
-        return Ok(_backtester.DeleteBacktests());
-    }
-
     /// <summary>
     /// Runs a backtest with the specified parameters.
     /// </summary>