@

R2: Generic Host + Modul-Vertrag + Shell-UI (PolytraderSharp-Konzept)

- Core/Modularity: neuer IModule (Name, DbPrefix, RegisterServices(services,config),
  RegisterUi(host,sp), StartAsync/StopAsync, GetActivationBlocker) + ModuleView
  + IModuleUiHost + WindowMenu. Alte IModule/ModuleRegistry/WindowManager/ModuleFormBase entfernt.
- Program.cs: Host.CreateDefaultBuilder + IConfiguration (appsettings.json/.Local.json);
  Core-Services registriert, Module via RegisterServices, Views via RegisterUi.
- UI: ShellUiHost (Einzelinstanz-Fenster + Fenster-Menue), LauncherForm als Shell
  (Buttons je View), Core-Views Logs/Settings/Workers als eigene Fenster.
- CongressTrading auf neuen Vertrag; Worker als IWorker registriert.
- --smoke-ui Headless-Test (konstruiert jede View + Launcher).
- appsettings.Local.json gitignored.
- Tests angepasst -> 30/30 gruen; Build + Smoke-UI + App-Start verifiziert.

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

UI/Views/SettingsView.cs

@@ -0,0 +1,23 @@
+using IBKRTrader.Core.Settings;
+
+namespace IBKRTrader.UI.Views;
+
+/// <summary>Core-View: Einstellungen (PropertyGrid auf AppSettings) mit Speichern-Button.</summary>
+public sealed class SettingsView : Form
+{
+    public SettingsView(SettingsService settings)
+    {
+        Text          = "Settings";
+        Width         = 820;
+        Height        = 720;
+        StartPosition = FormStartPosition.CenterScreen;
+
+        var grid = new PropertyGrid { Dock = DockStyle.Fill, SelectedObject = settings.Settings };
+
+        var save = new Button { Text = "Speichern", Dock = DockStyle.Bottom, Height = 36 };
+        save.Click += (_, _) => settings.Save();
+
+        Controls.Add(grid);
+        Controls.Add(save);
+    }
+}