feat: Add per-symbol trading controls for SOL and ETH

- Add SymbolSettings interface with enabled/positionSize/leverage fields
- Implement per-symbol ENV variables (SOLANA_*, ETHEREUM_*)
- Add SOL and ETH sections to settings UI with enable/disable toggles
- Add symbol-specific test buttons (SOL LONG/SHORT, ETH LONG/SHORT)
- Update execute and test endpoints to check symbol enabled status
- Add real-time risk/reward calculator per symbol
- Rename 'Position Sizing' to 'Global Fallback' for clarity
- Fix position manager P&L calculation for externally closed positions
- Fix zero P&L bug affecting 12 historical trades
- Add SQL scripts for recalculating historical P&L data
- Move archive TypeScript files to .archive to fix build

Defaults:
- SOL: 10 base × 10x leverage = 100 notional (profit trading)
- ETH:  base × 1x leverage =  notional (data collection)
- Global: 10 × 10x for BTC and other symbols

Configuration priority: Per-symbol ENV > Market config > Global ENV > Defaults

app/api/trading/test/route.ts

@@ -55,9 +55,23 @@ export async function POST(request: NextRequest): Promise<NextResponse<TestTrade
     
     // Get symbol-specific position sizing
     const { getPositionSizeForSymbol } = await import('@/config/trading')
-    const { size: positionSize, leverage } = getPositionSizeForSymbol(driftSymbol, config)
+    const { size: positionSize, leverage, enabled } = getPositionSizeForSymbol(driftSymbol, config)
+    
+    // Check if trading is enabled for this symbol
+    if (!enabled) {
+      console.log(`⛔ Trading disabled for ${driftSymbol}`)
+      return NextResponse.json(
+        {
+          success: false,
+          error: 'Symbol trading disabled',
+          message: `Trading is currently disabled for ${driftSymbol}. Enable it in settings.`,
+        },
+        { status: 400 }
+      )
+    }
     
     console.log(`📐 Symbol-specific sizing for ${driftSymbol}:`)
+    console.log(`   Enabled: ${enabled}`)
     console.log(`   Position size: $${positionSize}`)
     console.log(`   Leverage: ${leverage}x`)
     
@@ -185,6 +199,7 @@ export async function POST(request: NextRequest): Promise<NextResponse<TestTrade
       unrealizedPnL: 0,
       peakPnL: 0,
       peakPrice: entryPrice,
+      // MAE/MFE tracking
       maxFavorableExcursion: 0,
       maxAdverseExcursion: 0,
       maxFavorablePrice: entryPrice,
@@ -194,6 +209,12 @@ export async function POST(request: NextRequest): Promise<NextResponse<TestTrade
       lastUpdateTime: Date.now(),
     }
 
+    // Add to position manager for monitoring
+    const positionManager = await getInitializedPositionManager()
+    await positionManager.addTrade(activeTrade)
+    
+    console.log('✅ Trade added to position manager for monitoring')
+
     // Create response object
     const response: TestTradeResponse = {
       success: true,
@@ -246,7 +267,7 @@ export async function POST(request: NextRequest): Promise<NextResponse<TestTrade
       console.error('❌ Unexpected error placing exit orders:', err)
     }
 
-    // Save trade to database FIRST (before Position Manager)
+    // Save trade to database
     try {
       await createTrade({
         positionId: openResult.transactionSignature!,
@@ -279,12 +300,6 @@ export async function POST(request: NextRequest): Promise<NextResponse<TestTrade
       // Don't fail the trade if database save fails
     }
 
-    // NOW add to position manager for monitoring (after database save)
-    const positionManager = await getInitializedPositionManager()
-    await positionManager.addTrade(activeTrade)
-    
-    console.log('✅ Trade added to position manager for monitoring')
-
     console.log('✅ Test trade executed successfully!')
     
     return NextResponse.json(response)