Fix: Korean bilingual headers in habit_bot.py and stock_tracker.py

- Fixed headers to be properly bilingual (EN/KO)
- Added Korean descriptions for all features

Files:
- habit_bot.py
- stock_tracker.py

stock_tracker.py

@@ -1,22 +1,15 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 #
-# Stock #!/usr/bin/env python3 Crypto Portfolio Tracker / 주식 및 암호화폐 포트폴리오 트래커
-# 기능:
+# Stock & Crypto Portfolio Tracker / 주식 및 암호화폐 포트폴리오 트래커
+# 기능 / Features:
 # - 주식 및 암호화폐 가격 추적 / Track stocks and crypto prices
-# - 포트폴리오 P#!/usr/bin/env python3L 계산 / Calculate portfolio P#!/usr/bin/env python3L
+# - 포트폴리오 P&L 계산 / Calculate portfolio P&L
 # - 시장 지수 비교 / Compare against market indices
 # - 투자 권고사항 생성 / Generate investment recommendations
 # - 일일/주간 리포트 / Daily/weekly reports
 """
-Stock & Crypto Portfolio Tracker
-Features:
-- Track stocks and crypto prices
-- Calculate portfolio P&L
-- Compare against market indices
-- Generate investment recommendations based on guidelines
-- Daily/weekly reports
-"""
+
 
 import os
 import json