更新分享弹框：添加备用地址和二维码

style: compact TradePanel layout and move icon to header

style: update VIP tagline with new copy and centered dots

style: update VIP price text from 9.9 to 10 in TradePanel

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

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

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)

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

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

style: Optimize mobile layout with ultra-compact headers and single-row controls

feat: Add '基金' (Funds) option to market selection and finalize backend integration

feat: Add market selection dropdown to home screen

style: Consolidate mobile control buttons into a single row to maximize chart space

style: Restore and optimize component sizes for desktop while maintaining mobile compatibility

fix: Resolve desktop layout clipping by allowing left side to shrink and enforcing TradePanel constraints

fix: Restore font sizes and increase TradePanel width to 450px to prevent clipping

fix: Final attempt to resolve TradePanel overflow with robust CSS and layout constraints

fix: Resolve TradePanel content clipping by increasing width and adding safety padding

fix: Further increase TradePanel width and padding to ensure full visibility on desktop

fix: Fix desktop layout centering and right margin issues

fix: Resolve syntax errors in TradePanel.tsx and finalize mobile layout

fix: Force mobile layout with explicit height and flex constraints

fix: Stop auto-play when revealing the answer

feat: Enhance backtest statistics with accurate P/L ratio and trade details list

feat: Simplify trading panel with dual buy/sell buttons and improved position controls

feat: Add return rate chart with HS300 benchmark and detailed metrics

feat: Complete stock trading simulation system