fix: Increase transaction confirmation timeout to 60s for Alchemy Growth

- Alchemy Growth (10,000 CU/s) can handle longer confirmation waits
- Increased timeout from 30s to 60s in both openPosition() and closePosition()
- Added debug logging to execute endpoint to trace hang points
- Configured dual RPC: Alchemy primary (transactions), Helius fallback (subscriptions)
- Previous 30s timeout was causing premature failures during Solana congestion
- This should resolve 'Transaction was not confirmed in 30.00 seconds' errors

Related: User reported n8n webhook returning 500 with timeout error

app/api/trading/execute/route.ts

@@ -567,6 +567,17 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
     // while orders are still being placed, leaving orphaned stop loss orders
     let exitOrderSignatures: string[] = []
     try {
+      console.log('🔍 DEBUG: About to call placeExitOrders()...')
+      console.log('🔍 DEBUG: Parameters:', {
+        symbol: driftSymbol,
+        positionSizeUSD,
+        entryPrice,
+        tp1Price,
+        tp2Price,
+        stopLossPrice,
+        direction: body.direction
+      })
+      
       const exitRes = await placeExitOrders({
         symbol: driftSymbol,
         positionSizeUSD: positionSizeUSD,
@@ -584,6 +595,8 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
         hardStopPrice: hardStopPrice,
       })
 
+      console.log('🔍 DEBUG: placeExitOrders() returned:', exitRes.success ? 'SUCCESS' : 'FAILED')
+      
       if (!exitRes.success) {
         console.error('❌ Failed to place on-chain exit orders:', exitRes.error)
       } else {
@@ -594,10 +607,13 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
       console.error('❌ Unexpected error placing exit orders:', err)
     }
 
+    console.log('🔍 DEBUG: Exit orders section complete, about to calculate quality score...')
+
     // Save trade to database FIRST (CRITICAL: Must succeed before Position Manager)
     let qualityResult
     try {
       // Calculate quality score if metrics available
+      console.log('🔍 DEBUG: Calling scoreSignalQuality()...')
       qualityResult = await scoreSignalQuality({
         atr: body.atr || 0,
         adx: body.adx || 0,
@@ -610,6 +626,9 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
         timeframe: body.timeframe,
       })
       
+      console.log('🔍 DEBUG: scoreSignalQuality() completed, score:', qualityResult.score)
+      console.log('🔍 DEBUG: About to call createTrade()...')
+      
       await createTrade({
         positionId: openResult.transactionSignature!,
         symbol: driftSymbol,
@@ -643,6 +662,7 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
         indicatorVersion: body.indicatorVersion || 'v5', // Default to v5 for backward compatibility
       })
       
+      console.log('🔍 DEBUG: createTrade() completed successfully')
       console.log(`💾 Trade saved with quality score: ${qualityResult.score}/100`)
       console.log(`📊 Quality reasons: ${qualityResult.reasons.join(', ')}`)
     } catch (dbError) {