Add timeframe-aware signal quality scoring for 5min charts

- Lower ADX/ATR thresholds for 5min timeframe (ADX 12-22, ATR 0.2-0.7%)
- Add anti-chop filter: -20 points for extreme sideways (ADX<10, ATR<0.25, Vol<0.9)
- Pass timeframe parameter through check-risk and execute endpoints
- Fixes flip-flop losses from overly strict 5min filters
- Higher timeframes unchanged (still use ADX 18+, ATR 0.4+)

5min scoring now:
- ADX 12-15: moderate trend (+5)
- ADX 22+: strong trend (+15)
- ATR 0.2-0.35: acceptable (+5)
- ATR 0.35+: healthy (+10)
- Extreme chop penalty prevents whipsaw trades

app/api/trading/check-risk/route.ts

@@ -15,6 +15,7 @@ import { scoreSignalQuality, SignalQualityResult } from '@/lib/trading/signal-qu
 export interface RiskCheckRequest {
   symbol: string
   direction: 'long' | 'short'
+  timeframe?: string // e.g., '5', '15', '60', '1D'
   // Optional context metrics from TradingView
   atr?: number
   adx?: number
@@ -57,6 +58,7 @@ function shouldAllowScaling(
     pricePosition: newSignal.pricePosition,
     direction: newSignal.direction,
     minScore: config.minScaleQualityScore,
+    timeframe: newSignal.timeframe,
   })
   
   // 2. Check quality score (higher bar than initial entry)
@@ -271,7 +273,8 @@ export async function POST(request: NextRequest): Promise<NextResponse<RiskCheck
         volumeRatio: body.volumeRatio || 0,
         pricePosition: body.pricePosition || 0,
         direction: body.direction,
-        minScore: 60 // Hardcoded threshold
+        minScore: 60, // Hardcoded threshold
+        timeframe: body.timeframe,
       })
       
       if (!qualityScore.passed) {