Initial commit: ClawdDotNet

Import des bestehenden Projektstands in Git.
- .NET 10 WinForms Anwendung (Multi-Agent / Tool-System)
- .gitignore fuer Build-Artefakte, Secrets und Runtime-Daten ergaenzt

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

src/ClawdDotNet.Tools.Database/ClawdDotNet.Tools.Database.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <RootNamespace>ClawdDotNet.Tools.Database</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MySqlConnector" Version="2.5.0" />
+    <PackageReference Include="Npgsql" Version="10.0.2" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="7.0.1" />
+    <PackageReference Include="MongoDB.Driver" Version="3.8.1" />
+    <PackageReference Include="SharpCompress" Version="0.48.0" />
+    <PackageReference Include="Snappier" Version="1.3.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\\ClawdDotNet.Core\\ClawdDotNet.Core.csproj" />
+  </ItemGroup>
+</Project>