fix: Accept market_data_1min action in webhook endpoint

CRITICAL: 1-minute ATR data feed not working - Telegram bot timing out

Root cause:
- TradingView alert sends action: 'market_data_1min'
- Endpoint checked for exact match: 'market_data'
- Result: 400 Bad Request, no data cached

The fix:
- Accept both 'market_data' and 'market_data_1min'
- Prevents rejection of 1-minute TradingView alerts
- Enables fresh ATR data for manual Telegram trades

User symptom: 'long sol' → timeout → fallback to preset ATR 0.43
After fix: 'long sol' → waits for fresh 1min data → uses real ATR

Files changed:
- app/api/trading/market-data/route.ts line 64-71

app/api/trading/market-data/route.ts

@@ -61,11 +61,12 @@ export async function POST(request: NextRequest) {
       adx: body.adx
     })
     
-    // Validate it's a market data update
-    if (body.action !== 'market_data') {
-      console.log(`❌ Invalid action: ${body.action} (expected "market_data")`)
+    // Validate it's a market data update (accept both variations)
+    const validActions = ['market_data', 'market_data_1min']
+    if (!validActions.includes(body.action)) {
+      console.log(`❌ Invalid action: ${body.action} (expected ${validActions.join(' or ')})`)
       return NextResponse.json(
-        { error: 'Invalid action - expected "market_data"' },
+        { error: `Invalid action - expected ${validActions.join(' or ')}` },
         { status: 400 }
       )
     }