Initial release of A股智能看板 (a-share-dashboard):

- Provides a web-based Streamlit dashboard for A股分析
- Features fundamental stock screening, hotspot sector tracking, and deep individual stock analysis with K-line charts
- Includes northbound capital flow tracking and real-time portfolio monitoring with risk alerts
- Supports customizable stock pools and interactive data refresh
- Utilizes 东方财富 and AKShare for market and sector data