Add configurable minimum quality score setting

- Added minQualityScore to TradingConfig (default: 60)
- Updated settings UI with slider control (0-100, step 5)
- Updated check-risk endpoint to use config value
- Made scoreSignalQuality function accept minScore parameter
- Updated API to read/write MIN_QUALITY_SCORE env variable
- Allows users to adjust quality threshold from settings page

config/trading.ts

@@ -39,6 +39,7 @@ export interface TradingConfig {
   maxDailyDrawdown: number // USD stop trading threshold
   maxTradesPerHour: number // Limit overtrading
   minTimeBetweenTrades: number // Cooldown period (minutes)
+  minQualityScore: number // Minimum signal quality score (0-100) to accept trade
   
   // Execution
   useMarketOrders: boolean // true = instant execution
@@ -95,6 +96,7 @@ export const DEFAULT_TRADING_CONFIG: TradingConfig = {
   maxDailyDrawdown: -150, // Stop trading if daily loss exceeds $150 (-15%)
   maxTradesPerHour: 6, // Max 6 trades per hour
   minTimeBetweenTrades: 10, // 10 minutes cooldown
+  minQualityScore: 60, // Minimum 60/100 quality score to accept trade
   
   // Execution
   useMarketOrders: true, // Use market orders for reliable fills
@@ -255,6 +257,9 @@ export function getConfigFromEnv(): Partial<TradingConfig> {
     minTimeBetweenTrades: process.env.MIN_TIME_BETWEEN_TRADES
       ? parseInt(process.env.MIN_TIME_BETWEEN_TRADES)
       : undefined,
+    minQualityScore: process.env.MIN_QUALITY_SCORE
+      ? parseInt(process.env.MIN_QUALITY_SCORE)
+      : undefined,
   }
 }