feat: add system autostart and single-instance support

src/ipc/config/handlers.ts

@@ -1,5 +1,6 @@
 import { AppConfig } from '../../types/config';
 import { ConfigManager } from './manager';
+import { syncAutoStart } from '../../utils/autoStart';
 
 export function loadConfig(): AppConfig {
   return ConfigManager.loadConfig();
@@ -10,4 +11,5 @@ export function saveConfig(config: AppConfig): void {
   // Logic to update Tray if language changes
   // For now just save
   ConfigManager.saveConfig(config);
+  syncAutoStart(config);
 }