refactor: clean up unused imports and dead code across commands, services, and tests.

src/lib/configManager.ts

@@ -1,6 +1,5 @@
 import { readFileSync, writeFileSync } from 'fs';
 import { join } from 'path';
-import { AuroraClient } from '@/lib/BotClient';
 
 const configPath = join(process.cwd(), 'config', 'config.json');