- start.sh: use dirname instead of hardcoded path
- src/zcode.js: remove hardcoded chat_id fallback
- src/utils/rtk.js: use 'rtk' from PATH instead of hardcoded binary path
- src/telegram-bot.ts: use process.cwd() instead of hardcoded path
- TELEGRAM_SETUP.md: replace token/chat_id with placeholders
- QUICKSTART.md: sanitize all references
- SERVICE_MAP.md: use relative paths instead of absolute