refactor: make telegram config optional for non-telegram setups

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/start.ts

@@ -29,7 +29,9 @@ export function registerStartCommand(program: Command): void {
       const { startDaemon } = await import('../daemon/index.js');
       const daemon = await startDaemon(config);
 
-      console.log(`Allowed Telegram chat IDs: ${config.telegram.allowed_chat_ids.join(', ')}`);
+      if (config.telegram) {
+        console.log(`Allowed Telegram chat IDs: ${config.telegram.allowed_chat_ids.join(', ')}`);
+      }
 
       // Keep process alive
       await new Promise<void>((resolve) => {