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

app/api/settings/route.ts

@@ -79,6 +79,7 @@ export async function GET() {
       MAX_DAILY_DRAWDOWN: parseFloat(env.MAX_DAILY_DRAWDOWN || '-50'),
       MAX_TRADES_PER_HOUR: parseInt(env.MAX_TRADES_PER_HOUR || '6'),
       MIN_TIME_BETWEEN_TRADES: parseInt(env.MIN_TIME_BETWEEN_TRADES || '600'),
+      MIN_QUALITY_SCORE: parseInt(env.MIN_QUALITY_SCORE || '60'),
       SLIPPAGE_TOLERANCE: parseFloat(env.SLIPPAGE_TOLERANCE || '1.0'),
       DRY_RUN: env.DRY_RUN === 'true',
     }
@@ -115,6 +116,7 @@ export async function POST(request: NextRequest) {
       MAX_DAILY_DRAWDOWN: settings.MAX_DAILY_DRAWDOWN.toString(),
       MAX_TRADES_PER_HOUR: settings.MAX_TRADES_PER_HOUR.toString(),
       MIN_TIME_BETWEEN_TRADES: settings.MIN_TIME_BETWEEN_TRADES.toString(),
+      MIN_QUALITY_SCORE: settings.MIN_QUALITY_SCORE.toString(),
       SLIPPAGE_TOLERANCE: settings.SLIPPAGE_TOLERANCE.toString(),
       DRY_RUN: settings.DRY_RUN.toString(),
     }