@

Phase 0: Test-Fundament & Architektur-Doku

- IBKRTrader.Tests (xUnit + NSubstitute + FluentAssertions), nur Unit-Tests
- Repo-lokale NuGet.config: Test-Pakete in Allowlist ergaenzt
- Hauptprojekt: Test-Unterordner aus SDK-Globbing ausgeschlossen
- docs/ARCHITECTURE.md: Plan + Phasen-Checkliste
- grundregeln.md: .NET 10, Launcher-Modell; DB-Passwort entfernt

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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IBKRTrader.Tests/IBKRTrader.Tests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <!-- net10.0-windows + WinForms, weil das Testprojekt die WinForms-Hauptassembly referenziert -->
+    <TargetFramework>net10.0-windows</TargetFramework>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <IsPackable>false</IsPackable>
+    <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
+    <PackageReference Include="xunit" Version="2.9.3" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" />
+    <PackageReference Include="NSubstitute" Version="5.3.0" />
+    <PackageReference Include="FluentAssertions" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\IBKRTrader.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
+</Project>

IBKRTrader.Tests/SmokeTests.cs

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+using FluentAssertions;
+using IBKRTrader.Core.Settings;
+using IBKRTrader.Core.Workers;
+
+namespace IBKRTrader.Tests;
+
+/// <summary>
+/// Phase-0-Smoke-Test: bestätigt, dass die Test-Infrastruktur steht und die
+/// Referenz auf die Hauptassembly (IBKRTrader) kompiliert und lädt.
+/// </summary>
+[Trait("cat", "unit")]
+public class SmokeTests
+{
+    [Fact]
+    public void MainAssembly_IsReferenced_AndDefaultsLoad()
+    {
+        var settings = new AppSettings();
+
+        settings.Should().NotBeNull();
+        settings.IBKR.Should().NotBeNull();
+        settings.Logging.Level.Should().Be("Info");
+    }
+
+    [Fact]
+    public void WorkerType_HasWorkerAndService()
+    {
+        Enum.GetNames<WorkerType>().Should().Contain(["Worker", "Service"]);
+    }
+}