Phase 5-UI: Views sind echte Forms + Launcher-Offen-Status

- ModuleView liefert jetzt ein Form (CreateForm statt CreateControl); die 4 Views
  (Terminal, Settings, Jobs, Dashboard) von UserControl auf Form umgestellt
  (im Designer als Fenster bearbeitbar). ViewHostForm entfernt.
- ShellUiHost verwaltet offene Forms: Einzelinstanz, bereits offenes Fenster wird
  in den Vordergrund geholt, OpenStateChanged-Event.
- LauncherForm: Fenster-Buttons an View-IDs gebunden; offene Fenster werden am
  Button markiert (Checked), erneuter Klick holt das Fenster nach vorn.
- Build 0 Fehler.

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

Program.cs

@@ -138,9 +138,7 @@ internal static class Program
 				Title = "Terminal",
 				Group = "Core",
 				Order = 10,
-				PreferredWidth = 1000,
-				PreferredHeight = 650,
-				CreateControl = () =>
+				CreateForm = () =>
 				{
 					var view = new PolyTraderSharp.Ui.Views.TerminalView();
 					view.Initialize(viewServices.GetRequiredService<TerminalLogger>());
@@ -153,9 +151,7 @@ internal static class Program
 				Title = "Server Settings",
 				Group = "Core",
 				Order = 20,
-				PreferredWidth = 720,
-				PreferredHeight = 720,
-				CreateControl = () =>
+				CreateForm = () =>
 				{
 					var view = new PolyTraderSharp.Ui.Views.SettingsView();
 					view.Initialize(
@@ -171,9 +167,7 @@ internal static class Program
 				Title = "Server Jobs",
 				Group = "Core",
 				Order = 30,
-				PreferredWidth = 1000,
-				PreferredHeight = 500,
-				CreateControl = () =>
+				CreateForm = () =>
 				{
 					var view = new PolyTraderSharp.Ui.Views.JobsView();
 					view.Initialize(viewServices.GetRequiredService<JobManager>());
@@ -186,9 +180,7 @@ internal static class Program
 				Title = "Dashboard",
 				Group = "Core",
 				Order = 5,
-				PreferredWidth = 1200,
-				PreferredHeight = 650,
-				CreateControl = () =>
+				CreateForm = () =>
 				{
 					var view = new PolyTraderSharp.Ui.Views.DashboardView();
 					view.Initialize(