Implement A3, A4, A5, B3: Add MarketOutcomePriceSnapshot, implement Polymarket CLOB prices-history endpoint, improve strategy classification, introduce CopytradingScore, and decouple/optimize scoring pipeline into a separate worker

src/Predictalytics.Application/DTOs/TraderDto.cs

@@ -10,6 +10,7 @@ public record TraderDto(
     string Tier,
     string Strategy,
     decimal CombinedScore,
+    decimal CopytradingScore,
     decimal WinRate,
     decimal TotalPnl,
     int TotalTrades,
@@ -36,6 +37,7 @@ public record TraderDetailDto(
     decimal VolumeScore,
     decimal TimingScore,
     decimal CombinedScore,
+    decimal CopytradingScore,
     int Rank,
     bool IsOnWatchlist,
     DateTime CreatedAt,