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

lib/strategies/threshold.js

@@ -1,13 +1,5 @@
 import { BaseStrategy } from './base.js';
 
-/**
- * Threshold (Contrarian) Strategy
- * 
- * Logic:
- * - If one side goes above a high threshold (e.g. 65%), bet the other.
- * - Fixed bet size — no progression.
- * - Simple mean-reversion assumption for short-term BTC markets.
- */
 export class ThresholdStrategy extends BaseStrategy {
   constructor(config = {}) {
     super('threshold', {
@@ -33,7 +25,7 @@ export class ThresholdStrategy extends BaseStrategy {
 
     let signal = null;
 
-    if (yesPct >= trigger) {
+    if (yesPct >= trigger && noPct < 99) {
       signal = {
         strategy: this.name,
         side: 'no',
@@ -42,7 +34,7 @@ export class ThresholdStrategy extends BaseStrategy {
         reason: `Yes at ${yesPct}% (≥${trigger}%), contrarian No at ${noPct}¢`,
         ticker: state.ticker
       };
-    } else if (noPct >= trigger) {
+    } else if (noPct >= trigger && yesPct < 99) {
       signal = {
         strategy: this.name,
         side: 'yes',