Added Ensure.Arg.OfType() and Ensure.Arg.OfGenericType() with object argument.

[prochnowc]

No description provided.

[Copilot]

Pull Request Overview

Adds object-based overloads for Ensure.Arg.OfType and Ensure.Arg.OfGenericType to simplify runtime value checks and extends unit tests to cover these new methods.

• Introduces OfType(object?, Type, string?) and OfType<TExpected>(object?, string?) overloads
• Introduces OfGenericType(object?, Type, string?) and OfGenericType<TExpected>(object?, string?) overloads
• Adds corresponding tests for related, unrelated, and null value scenarios

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
test/AppCoreNet.Diagnostics.Tests/EnsureTests.Arg.cs	Added tests for the new object-based OfType and OfGenericType overloads
src/AppCoreNet.Diagnostics.Sources/Ensure.Arg.cs	Implemented the new overloads and XML docs for OfType and OfGenericType

Comments suppressed due to low confidence (1)

test/AppCoreNet.Diagnostics.Tests/EnsureTests.Arg.cs:184

• Consider adding tests for passing a null expectedType to both OfType and OfGenericType overloads, asserting that an ArgumentNullException is thrown.

[Theory]