修复问题三则：传递构建以添加拦截器命名空间 + 支持拦截隐式推断的命令处理器 + 提示需要默认命令处理器

[walterlv]

#65

#66

[Copilot]

Pull request overview

This PR fixes three issues related to command line parsing: enables interceptor namespace propagation through transitive builds, adds support for intercepting implicitly inferred command handlers, and improves error messages to prompt for default command handlers.

Changes:

• Moved Package.props from build/ to buildTransitive/ directory to enable proper transitive dependency propagation
• Enhanced InterceptorModelProvider to support both explicit generic parameters and implicit type inference in method calls
• Improved error message to specifically mention the need for a default command handler

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/DotNetCampus.CommandLine/Package/buildTransitive/Package.props	New file defining interceptor namespaces and compiler properties for transitive build propagation
Directory.Build.props	Updated import path to reference the new buildTransitive location
src/DotNetCampus.CommandLine/DotNetCampus.CommandLine.csproj	Updated package inclusion path to buildTransitive for proper NuGet packaging
src/DotNetCampus.CommandLine/CommandRunner.cs	Enhanced error message to explicitly mention default command handler requirement
src/DotNetCampus.CommandLine.Analyzer/Generators/ModelProviding/InterceptorModelProvider.cs	Added support for intercepting method calls with implicitly inferred type parameters alongside explicit generic syntax
tests/DotNetCampus.CommandLine.Tests/CommandMatching/AddHandlerTests.cs	Added test case validating typed delegate handlers with implicit type inference

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