New Bot Activity Page

We added a new Bot Activity page to the dashboard so users can monitor bot decisions. The page shows recent bot events including signals, entries, exits, skipped buys, skipped sells, strategy details, market regime, timeframe, price, and technical indicators such as RSI. This makes it easier to understand why a bot did or did not take a trade, especially when filters such as market quality, chase candle protection, higher-timeframe trend checks, or strategy exit rules are triggered.