Fix: Prevent bot from placing 100¢ trades with zero profit potential

lib/strategies/martingale.js

@@ -1,21 +1,12 @@
 import { BaseStrategy } from './base.js';
 
-/**
- * Martingale Strategy
- * 
- * Logic:
- * - If one side is ~70%+ (configurable), bet the opposite side.
- * - On loss, double the bet size (Martingale).
- * - On win, reset to base bet size.
- * - Max consecutive losses cap to prevent blowup.
- */
 export class MartingaleStrategy extends BaseStrategy {
   constructor(config = {}) {
     super('martingale', {
-      threshold: config.threshold || 70,    // Trigger when one side >= this %
-      baseBet: config.baseBet || 1,         // Base bet in dollars
-      maxDoublings: config.maxDoublings || 5, // Max consecutive losses before stopping
-      cooldownMs: config.cooldownMs || 60000, // Min time between trades (1 min)
+      threshold: config.threshold || 70,    
+      baseBet: config.baseBet || 1,         
+      maxDoublings: config.maxDoublings || 5, 
+      cooldownMs: config.cooldownMs || 60000, 
       ...config
     });
 
@@ -30,24 +21,17 @@ export class MartingaleStrategy extends BaseStrategy {
 
     const now = Date.now();
 
-    // Cooldown — don't spam trades
     if (now - this.lastTradeTime < this.config.cooldownMs) return null;
-
-    // Don't trade same ticker twice
     if (state.ticker === this.lastTradeTicker) return null;
-
-    // Check if Martingale limit reached
-    if (this.consecutiveLosses >= this.config.maxDoublings) {
-      return null; // Paused — too many consecutive losses
-    }
+    if (this.consecutiveLosses >= this.config.maxDoublings) return null; 
 
     const { yesPct, noPct } = state;
     const threshold = this.config.threshold;
 
     let signal = null;
 
-    // If "Yes" is at 70%+, bet "No" (the underdog)
-    if (yesPct >= threshold) {
+    // Prevent buying useless contracts at >= 99¢ (which would result in $0 or 0.01¢ profit)
+    if (yesPct >= threshold && noPct < 99) {
       signal = {
         strategy: this.name,
         side: 'no',
@@ -57,8 +41,7 @@ export class MartingaleStrategy extends BaseStrategy {
         ticker: state.ticker
       };
     }
-    // If "No" is at 70%+, bet "Yes" (the underdog)
-    else if (noPct >= threshold) {
+    else if (noPct >= threshold && yesPct < 99) {
       signal = {
         strategy: this.name,
         side: 'yes',