Phase 5.2: TradingState-Split (Core-State vs. CopyTradingState)

- Core TradingState (in Core): globale Schalter, Accounts, MarketCache, GlobalPnl.
- Neuer CopyTradingState (im Modul): Traders, MasterTraderPositions,
  TraderAnalyticsCache, TotalCopyTrades/GetNextTradeId, PendingOrderTimestamps,
  SixSharesMinimum.
- 10 Konsumenten umgestellt (Program, frm_main, CopyTradingEngine,
  TraderMonitor, Alchemy, WSS, Snapshot, StartupHydration, beide Analytics-Jobs):
  Modul-Felder von _state.* auf _copyState.* umgeleitet, CopyTradingState via DI.
- Rein mechanische Feld-Umleitung, keine Logikänderung. Build 0 Fehler.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/PolyTrader.Core/TradingState.cs

@@ -0,0 +1,39 @@
+using System.Collections.Concurrent;
+using PolyTraderSharp.Models;
+
+namespace PolyTraderSharp
+{
+    public enum TradingMode
+    {
+        Inactive,
+        SellOnly,
+        Active
+    }
+
+    /// <summary>
+    /// In-Memory Hot-Path State (Core-Teil).
+    /// Enthält den modulübergreifenden Zustand: eigene Accounts, globale Betriebsschalter,
+    /// Markt-Cache und Gesamt-PnL. Copytrading-spezifischer Zustand liegt im CopyTradingState
+    /// (siehe PolyTrader.Modules.CopyTrading).
+    /// </summary>
+    public class TradingState
+    {
+        // Globale Betriebsschalter
+        public bool GlobalTradingPaused { get; set; } = false;
+        public TradingMode LiveTradingMode { get; set; } = TradingMode.Inactive;
+        public TradingMode DemoTradingMode { get; set; } = TradingMode.Inactive;
+        public bool IsAlchemyHealthy { get; set; } = false;
+        public bool EnableBlockchainParser { get; set; } = true;
+        public bool DebugPollingLog { get; set; } = false;
+        public bool DebugOrderPayloadLog { get; set; } = false;
+
+        // Eigene Trading-Accounts (AccountId -> State)
+        public ConcurrentDictionary<int, AccountState> Accounts { get; } = new();
+
+        // Aggregierte PnL über alle Module (Dashboard/Overview)
+        public decimal GlobalPnl { get; set; } = 0.0m;
+
+        // High-Performance globaler Markt-Cache, verhindert DB-Flaschenhälse im Signalpfad.
+        public ConcurrentDictionary<string, MarketData> MarketCache { get; } = new(StringComparer.OrdinalIgnoreCase);
+    }
+}