feat: implement comprehensive process cleanup system

- Added aggressive cleanup system that runs every 5 minutes to kill orphaned processes
- Enhanced process cleanup with better signal handling and forced cleanup
- Added startup initialization system to ensure cleanup is properly loaded
- Integrated cleanup system into app layouts for automatic initialization
- Added zombie process cleanup and temp directory cleanup
- Improved Docker container restart behavior for proper process cleanup
- Resolves issue with zombie Chrome processes accumulating

lib/startup.ts

@@ -0,0 +1,16 @@
+// Startup initialization for the trading bot
+// This file initializes critical systems and cleanup handlers
+
+import processCleanup from './process-cleanup'
+import aggressiveCleanup from './aggressive-cleanup'
+
+// Initialize cleanup system
+console.log('🚀 Initializing trading bot systems...')
+console.log('🧹 Process cleanup handlers initialized')
+console.log('🧹 Aggressive cleanup system initialized')
+
+// Export cleanup for manual access
+export { processCleanup, aggressiveCleanup }
+
+// Initialize on import
+export default true