Add Options class and switch Application to use it instead of anonymous Struct

[hsbt]

Fixes #564

[Copilot]

Pull request overview

This PR addresses issue #564 by replacing the anonymous Struct used for application options with a named Rake::Options class. This improves error messages by showing Rake::Options instead of #<Class:0x...> when undefined methods are called on the options object.

Changes:

• Created a new Rake::Options class with all 20 option attributes from the original Struct
• Updated Application#options to instantiate Options.new instead of the anonymous Struct
• Added appropriate require statements in both lib/rake.rb and lib/rake/application.rb

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
lib/rake/options.rb	New file defining the Rake::Options class with attr_accessors for all 20 application options
lib/rake/application.rb	Updated options method to use Options.new instead of anonymous Struct, added require statement
lib/rake.rb	Added require statement for the new Options class

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