Initial commit: stocks-query skill

Add scripts for querying Taiwan stock market data via Yahoo Finance:
- Individual stock quotes (price, OHLC, volume, bid/ask)
- Three major institutional investors (foreign, trust, dealer)
- Technical indicators (RSI14, ATR14, KD, Bollinger Bands, MACD, MA)
- ETF holdings analysis (top 10, industry distribution, asset allocation)
- TAIEX weighted index market summary

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,19 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+*.egg-info/
+dist/
+build/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db