feat: add PepMcp server for MCP tool integration

Add new MCP (Model Context Protocol) server project that exposes PEP API
functionality as tools for LLM integration. Includes tools for:
- Nest queries (list, details, plates)
- Part search across programs
- Material analytics (usage, plate sizes, thickness breakdown)
- Customer usage analysis
- Stock recommendations
- Materials to order for pending programs

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

PepMcp/PepMcp.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ModelContextProtocol" Version="0.1.0-preview.14" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.1" />
+  </ItemGroup>
+
+</Project>