UI: Launcher-Account-Uebersicht + pure TradeAnalytics-Fundament

- TradeAnalytics (Core, pur/testbar): KPIs (Netto-PnL/Winrate/Ø/Profit-Faktor), Equity-Kurve,
  PnL je Modul/Account/Tag, Window-Summary. Speist Dashboard + Launcher. 7 Tests.
- Launcher dgv_accountlist: Spalten via Designer (Account, Module, Polymarket-Button, Wallet-USDC,
  3T-PnL, 3T-Winrate, Overall P/L). Daten je Account aus dem Core-Trade-Log via TradeAnalytics;
  Auto-Refresh alle 30 s; Polymarket-Button oeffnet das Wallet-Profil. DB-Abfragen fehlertolerant.

Build 0 Fehler, 331 Tests gruen, --smoke-ui ok (Launcher laedt Uebersicht).

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

Ui/LauncherForm.cs

@@ -1,9 +1,13 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Windows.Forms;
 using Microsoft.Extensions.DependencyInjection;
+using PolyTrader.Core.Analytics;
 using PolyTrader.Core.Modularity;
+using PolyTrader.Core.Persistence;
+using PolyTraderSharp.Models;
 
 namespace PolyTraderSharp.Ui
 {
@@ -21,6 +25,7 @@ namespace PolyTraderSharp.Ui
         private readonly TradingState _state;
         private readonly System.Windows.Forms.Timer _statusTimer = new() { Interval = 1000 };
         private readonly Dictionary<string, ToolStripButton> _viewButtons;
+        private int _statusTicks;
 
         public LauncherForm(ShellUiHost uiHost, IServiceProvider services)
         {
@@ -74,6 +79,13 @@ namespace PolyTraderSharp.Ui
             // Offen-Status der Fenster spiegeln (Button „checked", wenn Fenster offen).
             _uiHost.OpenStateChanged += UpdateWindowButtonStates;
 
+            // Account-Übersicht (dgv_accountlist): Zahlenformate + Polymarket-Button.
+            colAccBalance.DefaultCellStyle.Format = "N2";
+            colAccPnl3d.DefaultCellStyle.Format = "N2";
+            colAccWin3d.DefaultCellStyle.Format = "N1";
+            colAccOverall.DefaultCellStyle.Format = "N2";
+            dgv_accountlist.CellContentClick += AccountList_CellContentClick;
+
             _statusTimer.Tick += (_, _) => UpdateStatus();
             _statusTimer.Start();
             UpdateStatus();
@@ -149,6 +161,94 @@ namespace PolyTraderSharp.Ui
 
             UpdateTradingToggles();
             UpdateWindowButtonStates();
+
+            // Account-Übersicht alle 30 s aktualisieren (DB-Abfrage je Account – nicht jede Sekunde).
+            if (_statusTicks++ % 30 == 0) LoadAccountOverview();
+        }
+
+        // ===== Account-Übersicht (dgv_accountlist) =====
+
+        private void LoadAccountOverview()
+        {
+            if (IsDisposed) return;
+            var tradeLog = _services.GetService<ITradeLogRepository>();
+            if (tradeLog == null) return;
+
+            DateTime since3d = DateTime.UtcNow.AddDays(-3);
+            var rows = new List<AccountOverviewRow>();
+
+            foreach (var acc in _state.Accounts.Values.OrderBy(a => a.AccountId))
+            {
+                List<TradeRecord> trades;
+                try { trades = tradeLog.Find(t => t.AccountId == acc.AccountId); }
+                catch { trades = new List<TradeRecord>(); }   // DB nicht bereit -> leer statt Absturz
+
+                var (pnl3d, win3d, _) = TradeAnalytics.WindowSummary(trades.Where(t => t.ClosedAt >= since3d));
+                string modules = trades
+                    .Select(t => t.ModuleName)
+                    .Where(m => !string.IsNullOrEmpty(m))
+                    .Distinct().OrderBy(m => m)
+                    .DefaultIfEmpty("—")
+                    .Aggregate((a, b) => a + ", " + b);
+
+                rows.Add(new AccountOverviewRow
+                {
+                    AccountId = acc.AccountId,
+                    Name = (string.IsNullOrEmpty(acc.Name) ? $"#{acc.AccountId}" : acc.Name) + (acc.IsDemo ? " (Demo)" : ""),
+                    Modules = modules,
+                    WalletAddress = acc.WalletAddress,
+                    Balance = acc.TotalBalance,
+                    Pnl3d = pnl3d,
+                    WinRate3d = win3d,
+                    OverallPnl = trades.Sum(t => t.RealizedPnl)
+                });
+            }
+
+            dgv_accountlist.DataSource = rows;
+        }
+
+        private void AccountList_CellContentClick(object? sender, DataGridViewCellEventArgs e)
+        {
+            if (e.RowIndex < 0 || e.ColumnIndex < 0) return;
+            if (dgv_accountlist.Columns[e.ColumnIndex].Name != "colAccPoly") return;
+            if (dgv_accountlist.Rows[e.RowIndex].DataBoundItem is AccountOverviewRow row)
+                OpenPolymarketProfile(row.WalletAddress);
+        }
+
+        private void OpenPolymarketProfile(string walletAddress)
+        {
+            if (string.IsNullOrWhiteSpace(walletAddress))
+            {
+                MessageBox.Show("Für diesen Account ist keine Wallet-Adresse hinterlegt.", "Polymarket",
+                    MessageBoxButtons.OK, MessageBoxIcon.Information);
+                return;
+            }
+            try
+            {
+                Process.Start(new ProcessStartInfo
+                {
+                    FileName = $"https://polymarket.com/profile/{walletAddress}",
+                    UseShellExecute = true
+                });
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show($"Konnte Polymarket nicht öffnen: {ex.Message}", "Fehler",
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        /// <summary>Anzeige-Zeile der Account-Übersicht (Bindung an dgv_accountlist über DataPropertyName).</summary>
+        private sealed class AccountOverviewRow
+        {
+            public int AccountId { get; set; }
+            public string Name { get; set; } = string.Empty;
+            public string Modules { get; set; } = string.Empty;
+            public string WalletAddress { get; set; } = string.Empty;
+            public decimal Balance { get; set; }
+            public decimal Pnl3d { get; set; }
+            public decimal WinRate3d { get; set; }
+            public decimal OverallPnl { get; set; }
         }
     }
 }