chore: bump all packages to latest, cleanup dead code, fix BuildCheck version

- Version.props: bump 7 packages to latest stable (Meziantou, AwesomeAssertions,
  TestSdk, ANcpLua.Analyzers, Microsoft.OpenApi)
- BuildCheck.props: update MSBuild version check from 17.8 to 18.0
- Common.targets: use self-closing XML for empty property initializers
- SdkProjectBuilder: remove unused backward-compat region (7 methods)
- CLAUDE.md: update test examples to fluent API
- global.json: bump ANcpLua.NET.Sdk.Test to 2.23.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ANcpLua

global.json

@@ -4,7 +4,7 @@
     "version": "10.0.103"
   },
   "msbuild-sdks": {
-    "ANcpLua.NET.Sdk.Test": "2.22.1"
+    "ANcpLua.NET.Sdk.Test": "2.23.1"
   },
   "test": {
     "runner": "Microsoft.Testing.Platform"

src/Build/Common/BuildCheck.props

@@ -1,14 +1,14 @@
 <Project>
   <!--
     ═══════════════════════════════════════════════════════════════════════════
-    BUILDCHECK INTEGRATION (.NET 9+)
+    BUILDCHECK INTEGRATION (.NET 10+ / MSBuild 18.0+)
     ═══════════════════════════════════════════════════════════════════════════
 
     BuildCheck runs at MSBuild evaluation time and catches common antipatterns.
     Docs: https://learn.microsoft.com/en-us/dotnet/core/tools/buildcheck-rules
   -->
 
-  <PropertyGroup Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(MSBuildVersion)', '17.8'))">
+  <PropertyGroup Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(MSBuildVersion)', '18.0'))">
     <RunBuildCheck Condition="'$(DisableBuildCheck)' != 'true'">true</RunBuildCheck>
 
     <!-- Treat as errors in CI -->
@@ -17,7 +17,7 @@
 
   <!-- Rule Configuration -->
   <PropertyGroup Label="BuildCheck Rules"
-                 Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(MSBuildVersion)', '17.8'))">
+                 Condition="$([MSBuild]::VersionGreaterThanOrEquals('$(MSBuildVersion)', '18.0'))">
     <!-- BC0101: Shared output path - MUST be error -->
     <BC0101Severity>Error</BC0101Severity>
 

src/Build/Common/Common.targets

@@ -292,7 +292,7 @@
 
     <!-- Build test config section -->
     <PropertyGroup>
-      <_ClaudeMdTestConfig></_ClaudeMdTestConfig>
+      <_ClaudeMdTestConfig/>
       <_ClaudeMdTestConfig Condition="'$(IsTestProject)' == 'true' AND '$(SkipXunitInjection)' != 'true'">$(_ClaudeMdTestConfig)- xUnit v3 with Microsoft Testing Platform&#10;</_ClaudeMdTestConfig>
       <_ClaudeMdTestConfig Condition="'$(IsTestProject)' == 'true' AND '$(SkipXunitInjection)' == 'true'">$(_ClaudeMdTestConfig)- Custom test framework (xUnit skipped)&#10;</_ClaudeMdTestConfig>
       <_ClaudeMdTestConfig Condition="'$(IsTestProject)' == 'true'">$(_ClaudeMdTestConfig)- AwesomeAssertions&#10;</_ClaudeMdTestConfig>
@@ -302,13 +302,13 @@
 
     <!-- Build SDK features section -->
     <PropertyGroup>
-      <_ClaudeMdFeatures></_ClaudeMdFeatures>
+      <_ClaudeMdFeatures/>
       <_ClaudeMdFeatures Condition="'$(UseRoslynUtilities)' == 'true'">$(_ClaudeMdFeatures)- Roslyn Utilities (EquatableArray, DiagnosticFlow)&#10;</_ClaudeMdFeatures>
     </PropertyGroup>
 
     <!-- Build banned APIs section -->
     <PropertyGroup>
-      <_ClaudeMdBannedApis></_ClaudeMdBannedApis>
+      <_ClaudeMdBannedApis/>
       <_ClaudeMdBannedApis>$(_ClaudeMdBannedApis)- Use `TimeProvider` instead of current-time APIs&#10;</_ClaudeMdBannedApis>
       <_ClaudeMdBannedApis>$(_ClaudeMdBannedApis)- Use `Lock` instead of `object` for locking&#10;</_ClaudeMdBannedApis>
       <_ClaudeMdBannedApis>$(_ClaudeMdBannedApis)- Use `System.Text.Json` instead of Newtonsoft&#10;</_ClaudeMdBannedApis>

src/Build/Common/Version.props

@@ -36,21 +36,21 @@
        ROSLYN.UTILITIES (Runtime package)
        ═══════════════════════════════════════════════════════════════════════ -->
   <PropertyGroup Label="Roslyn.Utilities">
-    <ANcpLuaRoslynUtilitiesVersion>1.39.0</ANcpLuaRoslynUtilitiesVersion>
+    <ANcpLuaRoslynUtilitiesVersion>1.40.0</ANcpLuaRoslynUtilitiesVersion>
   </PropertyGroup>
 
   <!-- ═══════════════════════════════════════════════════════════════════════
        ROSLYN.UTILITIES.SOURCES (Source-only package for generators)
        ═══════════════════════════════════════════════════════════════════════ -->
   <PropertyGroup Label="Roslyn.Utilities.Sources">
-    <ANcpLuaRoslynUtilitiesSourcesVersion>1.39.0</ANcpLuaRoslynUtilitiesSourcesVersion>
+    <ANcpLuaRoslynUtilitiesSourcesVersion>1.40.0</ANcpLuaRoslynUtilitiesSourcesVersion>
   </PropertyGroup>
 
   <!-- ═══════════════════════════════════════════════════════════════════════
        ROSLYN.UTILITIES.POLYFILLS (Source-only polyfills for netstandard2.0)
        ═══════════════════════════════════════════════════════════════════════ -->
   <PropertyGroup Label="Roslyn.Utilities.Polyfills">
-    <ANcpLuaRoslynUtilitiesPolyfillsVersion>1.39.0</ANcpLuaRoslynUtilitiesPolyfillsVersion>
+    <ANcpLuaRoslynUtilitiesPolyfillsVersion>1.40.0</ANcpLuaRoslynUtilitiesPolyfillsVersion>
   </PropertyGroup>
 
   <!-- ═══════════════════════════════════════════════════════════════════════
@@ -82,11 +82,11 @@
        ═══════════════════════════════════════════════════════════════════════ -->
   <PropertyGroup Label="Meziantou">
     <MeziantouFrameworkVersion>5.0.12</MeziantouFrameworkVersion>
-    <MeziantouFullPathVersion>1.1.15</MeziantouFullPathVersion>
-    <MeziantouTemporaryDirectoryVersion>1.0.34</MeziantouTemporaryDirectoryVersion>
+    <MeziantouFullPathVersion>1.1.16</MeziantouFullPathVersion>
+    <MeziantouTemporaryDirectoryVersion>1.0.35</MeziantouTemporaryDirectoryVersion>
     <MeziantouThreadingVersion>2.0.4</MeziantouThreadingVersion>
     <MeziantouDependencyScanningVersion>2.0.7</MeziantouDependencyScanningVersion>
-    <MeziantouAnalyzerVersion>2.0.301</MeziantouAnalyzerVersion>
+    <MeziantouAnalyzerVersion>3.0.17</MeziantouAnalyzerVersion>
   </PropertyGroup>
 
   <!-- ═══════════════════════════════════════════════════════════════════════
@@ -95,7 +95,7 @@
        ═══════════════════════════════════════════════════════════════════════ -->
   <PropertyGroup Label="Testing">
     <XunitV3Version>3.2.2</XunitV3Version>
-    <AwesomeAssertionsVersion>9.3.0</AwesomeAssertionsVersion>
+    <AwesomeAssertionsVersion>9.4.0</AwesomeAssertionsVersion>
     <AwesomeAssertionsAnalyzersVersion>9.0.8</AwesomeAssertionsAnalyzersVersion>
   </PropertyGroup>
 
@@ -106,7 +106,7 @@
   <PropertyGroup Label="MTP Extensions">
     <MTPExtensionsVersion>2.1.0</MTPExtensionsVersion>
     <CodeCoverageVersion>18.4.1</CodeCoverageVersion>
-    <TestSdkVersion>18.0.1</TestSdkVersion>
+    <TestSdkVersion>18.3.0</TestSdkVersion>
     <DiagnosticsTestingVersion>10.3.0</DiagnosticsTestingVersion>
     <GitHubActionsLoggerMTPVersion>3.0.1</GitHubActionsLoggerMTPVersion>
     <GitHubActionsLoggerVSTestVersion>2.4.1</GitHubActionsLoggerVSTestVersion>
@@ -116,7 +116,7 @@
        ANALYZERS (SDK-injected)
        ═══════════════════════════════════════════════════════════════════════ -->
   <PropertyGroup Label="Analyzers">
-    <ANcpLuaAnalyzersVersion>1.19.1</ANcpLuaAnalyzersVersion>
+    <ANcpLuaAnalyzersVersion>1.19.4</ANcpLuaAnalyzersVersion>
     <SbomTargetsVersion>4.1.5</SbomTargetsVersion>
     <BannedApiAnalyzersVersion>4.14.0</BannedApiAnalyzersVersion>
     <JonSkeetAnalyzersVersion>1.0.0-beta.6</JonSkeetAnalyzersVersion>
@@ -154,10 +154,10 @@
   <!-- ═══════════════════════════════════════════════════════════════════════
        OPENAPI / YAML
        Used by: SDK (OpenAPI tooling)
-       Note: OpenApi.Readers 2.0.0 stable doesn't exist, using preview
+       Note: OpenApi.Readers stable 2.0+ doesn't exist, still on preview
        ═══════════════════════════════════════════════════════════════════════ -->
   <PropertyGroup Label="OpenAPI">
-    <MicrosoftOpenApiVersion>2.0.0</MicrosoftOpenApiVersion>
+    <MicrosoftOpenApiVersion>3.3.1</MicrosoftOpenApiVersion>
     <MicrosoftOpenApiReadersVersion>2.0.0-preview.13</MicrosoftOpenApiReadersVersion>
     <YamlDotNetVersion>16.3.0</YamlDotNetVersion>
   </PropertyGroup>

tests/ANcpLua.Sdk.Tests/CLAUDE.md

@@ -23,10 +23,11 @@ dotnet test --project tests/ANcpLua.Sdk.Tests/ANcpLua.Sdk.Tests.csproj --filter-
 Tests use `ProjectBuilder` to create isolated .NET projects and validate SDK behavior:
 
 ```csharp
-await using var project = CreateProjectBuilder();
-project.AddCsprojFile([("OutputType", "Library")]);
-project.AddFile("sample.cs", "public class Sample { }");
-var result = await project.BuildAsync();
+await using var project = SdkProjectBuilder.Create(fixture);
+var result = await project
+    .WithOutputType("Library")
+    .AddSource("sample.cs", "public class Sample { }")
+    .BuildAsync();
 result.AssertSuccess();
 ```
 
@@ -97,14 +98,11 @@ Example:
 [Fact]
 public async Task NewFeature_WhenEnabled_ShouldWork()
 {
-    await using var project = CreateProjectBuilder();
-    project.AddCsprojFile([
-        ("TargetFramework", "net10.0"),
-        ("NewFeature", "true")
-    ]);
-    project.AddFile("test.cs", "public class Test { }");
-
-    var result = await project.BuildAsync();
+    await using var project = SdkProjectBuilder.Create(fixture);
+    var result = await project
+        .WithProperty("NewFeature", "true")
+        .AddSource("test.cs", "public class Test { }")
+        .BuildAsync();
 
     result.AssertSuccess();
     result.AssertPropertyValue("NewFeature", "true");

tests/ANcpLua.Sdk.Tests/Helpers/SdkProjectBuilder.cs

@@ -389,110 +389,6 @@ protected override void GenerateCsprojFile()
     private string GetSdkElementContent(string sdkName) =>
         $"""<Sdk Name="{sdkName}" Version="{_fixture.Version}" />""";
 
-    #region Backward compatibility - deprecated methods
-
-    /// <summary>
-    ///     Adds a csproj file with SDK-specific configuration.
-    /// </summary>
-    /// <remarks>
-    ///     This method is deprecated. Prefer using the fluent API:
-    ///     <code>
-    /// await using var project = SdkProjectBuilder.Create(fixture);
-    /// var result = await project
-    ///     .WithTargetFramework(Tfm.Net100)
-    ///     .AddSource("Code.cs", code)
-    ///     .BuildAsync();
-    /// </code>
-    /// </remarks>
-    [Obsolete("Use fluent API: SdkProjectBuilder.Create(fixture).WithTargetFramework().AddSource().BuildAsync()")]
-    public SdkProjectBuilder AddCsprojFile(
-        (string Name, string Value)[]? properties = null,
-        NuGetReference[]? nuGetPackages = null,
-        IEnumerable<XElement>? additionalProjectElements = null,
-        string? sdk = null,
-        string? rootSdk = null,
-        string filename = "ANcpLua.TestProject.csproj",
-        SdkImportStyle importStyle = SdkImportStyle.Default)
-    {
-        // Migrate parameters to fluent state
-        if (properties is not null)
-            foreach (var prop in properties)
-                WithProperty(prop.Name, prop.Value);
-
-        if (nuGetPackages is not null)
-            foreach (var pkg in nuGetPackages)
-                WithPackage(pkg.Name, pkg.Version);
-
-        if (additionalProjectElements is not null)
-            foreach (var element in additionalProjectElements)
-                _additionalProjectElements.Add(element);
-
-        if (sdk is not null) _sdkName = sdk;
-        if (rootSdk is not null) RootSdk = rootSdk;
-        if (filename != "ANcpLua.TestProject.csproj") WithFilename(filename);
-        if (importStyle != SdkImportStyle.Default) _sdkImportStyle = importStyle;
-
-        // Generate immediately for backward compatibility
-        GenerateCsprojFile();
-        return this;
-    }
-
-    /// <summary>
-    ///     Sets the .NET SDK version (alias for WithDotnetSdkVersion for backward compatibility).
-    /// </summary>
-    public void SetDotnetSdkVersion(NetSdkVersion version) => WithDotnetSdkVersion(version);
-
-    /// <summary>
-    ///     Builds the project (alias for BuildAsync for backward compatibility).
-    /// </summary>
-    public Task<BuildResult> BuildAndGetOutput(
-        string[]? buildArguments = null,
-        (string Name, string Value)[]? environmentVariables = null) =>
-        ExecuteDotnetCommandAsync("build", buildArguments, environmentVariables);
-
-    /// <summary>
-    ///     Packs the project (alias for PackAsync for backward compatibility).
-    /// </summary>
-    public Task<BuildResult> PackAndGetOutput(
-        string[]? packArguments = null,
-        (string Name, string Value)[]? environmentVariables = null) =>
-        ExecuteDotnetCommandAsync("pack", packArguments, environmentVariables);
-
-    /// <summary>
-    ///     Runs tests (alias for TestAsync for backward compatibility).
-    /// </summary>
-    public Task<BuildResult> TestAndGetOutput(
-        string[]? testArguments = null,
-        (string Name, string Value)[]? environmentVariables = null) =>
-        ExecuteDotnetCommandAsync("test", testArguments, environmentVariables);
-
-    /// <summary>
-    ///     Runs the project (alias for RunAsync for backward compatibility).
-    /// </summary>
-    public Task<BuildResult> RunAndGetOutput(
-        string[]? arguments = null,
-        (string Name, string Value)[]? environmentVariables = null) =>
-        ExecuteDotnetCommandAsync("run", ["--", .. arguments ?? []], environmentVariables);
-
-    /// <summary>
-    ///     Restores the project (alias for RestoreAsync for backward compatibility).
-    /// </summary>
-    public Task<BuildResult> RestoreAndGetOutput(
-        string[]? arguments = null,
-        (string Name, string Value)[]? environmentVariables = null) =>
-        ExecuteDotnetCommandAsync("restore", arguments, environmentVariables);
-
-    /// <summary>
-    ///     Executes an arbitrary dotnet command (alias for ExecuteDotnetCommandAsync for backward compatibility).
-    /// </summary>
-    public Task<BuildResult> ExecuteDotnetCommandAndGetOutput(
-        string command,
-        string[]? arguments = null,
-        (string Name, string Value)[]? environmentVariables = null) =>
-        ExecuteDotnetCommandAsync(command, arguments, environmentVariables);
-
-    #endregion
-
     /// <inheritdoc />
     public override async Task<BuildResult> ExecuteDotnetCommandAsync(
         string command,