Initial Homebrew tap setup with automated documentation

- Add formula parser with Ruby AST parsing
- Add GitHub Actions CI/CD workflows
- Add Jekyll-based documentation site
- Add RuboCop and Dependabot configuration
- Add example formula for demonstration

Formula/e/example-tool.rb

@@ -0,0 +1,17 @@
+class ExampleTool < Formula
+  desc "An example tool to demonstrate the tap functionality"
+  homepage "https://github.com/ivuorinen/example-tool"
+  url "https://github.com/ivuorinen/example-tool/archive/v1.0.0.tar.gz"
+  sha256 "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
+  license "MIT"
+
+  depends_on "go" => :build
+
+  def install
+    system "go", "build", *std_go_args(ldflags: "-s -w")
+  end
+
+  test do
+    assert_match "example-tool version 1.0.0", shell_output("#{bin}/example-tool --version")
+  end
+end