feat: enhance dashboard with trade storytelling and position tracking

feat: add real-time WebSocket integration and enhanced signal analysis

feat: add comprehensive resilience layer for API calls

feat: add strategy utilities and improve core modules

refactor: centralize scanner into shared ScannerService

refactor: DRY cleanup and code quality improvements

fix: record realized P&L when positions are closed

fix: make trading strategy more conservative to improve P&L

feat: add API caching and improve thread safety

feat: improve signal generation with proper technical indicators

fix: add fallback for older alpaca_trade_api order placement

feat: add bot management controls to frontend dashboard

feat: implement active position management with auto-liquidation

chore: add .localstack to gitignore and remove from tracking

refactor: consolidate scripts and improve crypto trading support