Fix: Initialize Drift service before cancelling orders

- cancelAllOrders() now calls initializeDriftService() if service not initialized
- Prevents 'Drift service not initialized' error when Position Manager tries to cancel orphaned orders
- Ensures order cleanup works correctly after external position closures

lib/drift/orders.ts

@@ -4,7 +4,7 @@
  * Handles opening and closing positions with market orders
  */
 
-import { getDriftService } from './client'
+import { getDriftService, initializeDriftService } from './client'
 import { getMarketConfig } from '../../config/trading'
 import BN from 'bn.js'
 import {
@@ -541,7 +541,13 @@ export async function cancelAllOrders(
   try {
     console.log(`🗑️ Cancelling all orders for ${symbol}...`)
     
-    const driftService = getDriftService()
+    // Ensure Drift service is initialized
+    let driftService = getDriftService()
+    if (!driftService) {
+      console.log('⚠️ Drift service not initialized, initializing now...')
+      driftService = await initializeDriftService()
+    }
+    
     const driftClient = driftService.getClient()
     const marketConfig = getMarketConfig(symbol)