Allow CustomHandler to invoke static methods from matched types

[Dreamescaper]

No description provided.

[Copilot]

Pull Request Overview

This PR extends the CustomHandler functionality to allow invoking static methods from matched types in addition to generic methods in the current type. The implementation adds support for detecting whether a custom handler should be a method in the current class or a static method in matched types.

• Added CustomHandlerType enum to distinguish between method types (current class method vs. type method)
• Updated attribute parsing to detect and handle both custom handler types
• Modified code generation to invoke static methods on matched types when appropriate

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
version.json	Bumps version from 2.2 to 2.3
ServiceRegistrationModel.cs	Adds CustomHandlerType and TypeName properties to CustomHandlerModel
AttributeModel.cs	Adds CustomHandlerType enum and updates attribute parsing logic
GenerateAttributeInfo.cs	Updates documentation comments for better clarity
DiagnosticDescriptors.cs	Removes unused CustomHandlerMethodNotFound diagnostic
DependencyInjectionGenerator.cs	Updates code generation to handle both handler types
DependencyInjectionGenerator.ParseMethodModel.cs	Modifies validation logic for custom handlers
DependencyInjectionGenerator.FindServicesToRegister.cs	Updates custom handler creation with new properties
DependencyInjectionGenerator.FilterTypes.cs	Allows static types for TypeMethod custom handlers
CustomHandlerTests.cs	Adds comprehensive tests for static method handlers
README.md	Updates documentation to reflect new CustomHandler capabilities

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[Copilot]

The validation logic only applies to Method type custom handlers but doesn't validate TypeMethod handlers. Consider adding validation for static methods in target types to ensure they exist and have correct signatures.