fix: correct database migration logic using text()

feat: support flexible VIP pricing and duration selection

fix: ensure static directory exists before mounting

feat: display static qr code images directly in payment modal

fix: restore router import and fix frontend api paths

fix: restore missing router import in main.py

feat: sync qr codes from dataset on startup

feat: user auth and payment gateway

feat: implement user auth, daily limits, and built-in Vmq payment gateway

实现用户鉴权与支付模块：接入SQLite持久化、V免签回调、VIP权益校验及HF Dataset自动同步

添加项目技术文档：详细记录系统架构、核心模块、问题解决方案和未来优化方向

优化重开和再来一局按钮逻辑：点击后仅重置到首页，不自动开始新游戏

修复同步稳定性与远程视图冲突

修复ETF/LOF/REITs数据同步接口并移除调试日志

添加市场类型数量调试日志

修复ETF/LOF/REITs单独筛选问题

feat: 添加全A股市场筛选支持

fix: Resolve JSX namespace error by removing invalid responsive size prop on Lucide icon

style: Optimize home screen layout with responsive font sizes and improved market selection dropdown

style: Improve Profit/Loss Ratio display (show 'MAX' instead of 999)

fix: Implement professional financial metrics calculation (Jensen's Alpha, Beta, Sharpe Ratio)

fix: Correct statistics logic for max drawdown, win rate, and annual return

style: Update 'Play Again' button color to match the theme (Red/Pink gradient)

style: Make chart legend adaptive and wrap on small screens

feat: Allow extreme zooming out of the chart by reducing minBarSpacing

style: Unify VOL indicator colors with Candlestick and MACD

fix: Resolve syntax errors and finalize ReturnChartModal UI optimizations

fix: Ensure full capture of share image by temporarily disabling height constraints

feat: Add QR code and link to share image in ReturnChartModal

fix: Add html2canvas to package.json dependencies to resolve build error

fix: Resolve syntax errors and finalize ReturnChartModal UI optimizations

feat: Add share button to ReturnChartModal using html2canvas for image generation

feat: Make backtest result page full-screen and relocate 'Play Again' button to header

fix: Resolve syntax errors and finalize ReturnChartModal layout optimizations

style: Minimize right price scale width and remove offsets in ReturnChartModal

style: Fit content and optimize price scale labels in ReturnChartModal

style: Fix missing legend color dots in ReturnChartModal

style: Compact ReturnChartModal with reduced width and padding

feat: Rename 'Trading Days' to 'Market Days' and reorder statistics in ReturnChartModal

feat: Add 'Trading Days' and 'Trade Count' to ReturnChartModal and move 'Win Rate' to the end

style: Make ReturnChartModal statistics responsive for mobile (3-column grid)

style: Remove '最高' indicator from StockHeader

style: Reformat date and relocate it next to '日K' in StockHeader

fix: Resolve syntax error in StockHeader.tsx (duplicate closing parenthesis)

style: Reorganize StockHeader into two rows for better readability and completeness

style: Align labels and inputs horizontally on mobile to save vertical space

style: Restore and compact StockHeader indicators for mobile

style: Eliminate empty space in mobile TradePanel and allow dynamic height for more chart space

feat: Implement hot reload for daily incremental sync in HF Space

fix: Switch to download-based Parquet loading to resolve DuckDB httpfs issues in HF Space