build: project skeleton (Core / Host / Tests) + MCP SDK

- src/Kompas.Mcp.Core: classlib с ссылками на interop-сборки КОМПАС
- src/Kompas.Mcp.Host: console, ModelContextProtocol 1.3.0 + Hosting
- tests/Kompas.Mcp.Tests: xUnit, ссылка на Core
- все проекты унаследовали net8.0-windows/x64 из Directory.Build.props
- docs/OPEN_QUESTIONS.md: журнал спорных решений
- .gitignore: добавлен .scratch/

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/Kompas.Mcp.Core/Kompas.Mcp.Core.csproj

@@ -0,0 +1,33 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <!-- TargetFramework (net8.0-windows) и общие свойства — из Directory.Build.props. -->
+  <PropertyGroup>
+    <RootNamespace>Kompas.Mcp.Core</RootNamespace>
+    <AssemblyName>Kompas.Mcp.Core</AssemblyName>
+  </PropertyGroup>
+
+  <!-- Вендорские interop-сборки КОМПАС (libs/kompas-interop). -->
+  <ItemGroup>
+    <Reference Include="KompasAPI7">
+      <HintPath>$(KompasInteropDir)\KompasAPI7.dll</HintPath>
+      <Private>true</Private>
+    </Reference>
+    <Reference Include="Kompas6API5">
+      <HintPath>$(KompasInteropDir)\Kompas6API5.dll</HintPath>
+      <Private>true</Private>
+    </Reference>
+    <Reference Include="Kompas6Constants">
+      <HintPath>$(KompasInteropDir)\Kompas6Constants.dll</HintPath>
+      <Private>true</Private>
+    </Reference>
+    <Reference Include="Kompas6Constants3D">
+      <HintPath>$(KompasInteropDir)\Kompas6Constants3D.dll</HintPath>
+      <Private>true</Private>
+    </Reference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.2" />
+  </ItemGroup>
+
+</Project>

src/Kompas.Mcp.Host/Kompas.Mcp.Host.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <!-- TargetFramework (net8.0-windows) и общие свойства — из Directory.Build.props. -->
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <AssemblyName>kompas-mcp</AssemblyName>
+    <RootNamespace>Kompas.Mcp.Host</RootNamespace>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ModelContextProtocol" Version="1.3.0" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Kompas.Mcp.Core\Kompas.Mcp.Core.csproj" />
+  </ItemGroup>
+
+</Project>

src/Kompas.Mcp.Host/Program.cs

@@ -0,0 +1,2 @@
+// See https://aka.ms/new-console-template for more information
+Console.WriteLine("Hello, World!");