feat: implement strategy metadata and dashboard simulation panel

- Added display_name and description to BaseStrategy
- Updated MA44 and MA125 strategies with metadata
- Added /api/v1/strategies endpoint for dynamic discovery
- Added Strategy Simulation panel to dashboard with date picker and tooltips
- Implemented JS polling for backtest results in dashboard
- Added performance test scripts and DB connection guide
- Expanded indicator config to all 15 timeframes

config/data_config.yaml

@@ -32,6 +32,15 @@ data_collection:
   # Intervals to collect (1m is base, others computed)
   intervals:
     - "1m"   # Base collection
+  indicators:
+    ma44:
+      type: "sma"
+      period: 44
+      intervals: ["1d"]
+    ma125:
+      type: "sma"
+      period: 125
+      intervals: ["1d"]
     
   # WebSocket settings
   websocket: