Add property-based tests for SBOM/VEX document ordering and Unicode normalization determinism

- Implement `SbomVexOrderingDeterminismProperties` for testing component list and vulnerability metadata hash consistency.
- Create `UnicodeNormalizationDeterminismProperties` to validate NFC normalization and Unicode string handling.
- Add project file for `StellaOps.Testing.Determinism.Properties` with necessary dependencies.
- Introduce CI/CD template validation tests including YAML syntax checks and documentation content verification.
- Create validation script for CI/CD templates ensuring all required files and structures are present.

src/__Analyzers/StellaOps.Determinism.Analyzers/StellaOps.Determinism.Analyzers.csproj

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <LangVersion>preview</LangVersion>
+    <IncludeBuildOutput>false</IncludeBuildOutput>
+    <AnalysisLevel>latest</AnalysisLevel>
+    <EnforceExtendedAnalyzerRules>true</EnforceExtendedAnalyzerRules>
+    <RootNamespace>StellaOps.Determinism.Analyzers</RootNamespace>
+    <Description>Roslyn analyzer enforcing canonicalization at resolver boundaries (STELLA0100).</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" PrivateAssets="all" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="README.md" Visible="false" />
+    <None Include="AnalyzerReleases.Shipped.md" Visible="false" />
+    <None Include="AnalyzerReleases.Unshipped.md" Visible="false" />
+  </ItemGroup>
+</Project>