Refactor gemspec file selection to match other repos

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Co-Authored-By: Claude Opus 4.5 <[email protected]>

Author: horgh

minfraud.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 3.2'
 
-  spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^.gitignore$|^Gemfile|^(?:\.github|dev-bin|spec)/}) }
+  spec.files         = Dir['**/*'].difference(Dir['dev-bin/**/*', 'Gemfile*', 'spec/**/*'])
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']