Enhance trailing stop with ATR-based sizing

lib/database/trades.ts

@@ -75,6 +75,7 @@ export interface UpdateTradeStateParams {
   maxAdverseExcursion?: number
   maxFavorablePrice?: number
   maxAdversePrice?: number
+  runnerTrailingPercent?: number
 }
 
 export interface UpdateTradeExitParams {
@@ -235,6 +236,7 @@ export async function updateTradeState(params: UpdateTradeStateParams) {
             maxAdverseExcursion: params.maxAdverseExcursion,
             maxFavorablePrice: params.maxFavorablePrice,
             maxAdversePrice: params.maxAdversePrice,
+            runnerTrailingPercent: params.runnerTrailingPercent,
             lastUpdate: new Date().toISOString(),
           }
         }