Keying LiveStrategyDetail by strategy name resets its child state (trade-log
pagination), so switching strategies no longer keeps the previous page index.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Rebuilds the client into Live (watchlist with charts, fundamentals, news,
quant analysis) and Strategy (backtest runner / precomputed results) pages,
adds the corresponding /api/stocks/:symbol/chart|fundamentals|related|quant
and /api/strategies endpoints, and updates project tooling.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
