feat(cli): add gitflow-toolkit homebrew formula and checksum task

- implement homebrew formula for gitflow-toolkit
- include platform-specific binaries and checksums
- add git subcommand symlinks for workflow integration
- introduce checksums task for release file verification

Signed-off-by: kovacs <mritd@linux.com>

Author: mritd

Formula/gitflow-toolkit.rb

@@ -0,0 +1,78 @@
+class GitflowToolkit < Formula
+  desc "CLI tool for standardizing git commits following Angular commit specification"
+  homepage "https://github.com/mritd/gitflow-toolkit"
+  license "MIT"
+
+  # Get latest version from GitHub API
+  latest_version = JSON.parse(
+    URI.open("https://api.github.com/repos/mritd/gitflow-toolkit/releases/latest").read
+  )["tag_name"].delete_prefix("v")
+
+  version latest_version
+
+  # Fetch checksums from release
+  checksums_url = "https://github.com/mritd/gitflow-toolkit/releases/download/v#{version}/checksums.txt"
+  checksums = URI.open(checksums_url).read.lines.to_h { |l| l.strip.split("  ").reverse }
+
+  on_macos do
+    on_intel do
+      url "https://github.com/mritd/gitflow-toolkit/releases/download/v#{version}/gitflow-toolkit-darwin-amd64"
+      sha256 checksums["gitflow-toolkit-darwin-amd64"]
+    end
+
+    on_arm do
+      url "https://github.com/mritd/gitflow-toolkit/releases/download/v#{version}/gitflow-toolkit-darwin-arm64"
+      sha256 checksums["gitflow-toolkit-darwin-arm64"]
+    end
+  end
+
+  on_linux do
+    on_intel do
+      if Hardware::CPU.is_64_bit?
+        url "https://github.com/mritd/gitflow-toolkit/releases/download/v#{version}/gitflow-toolkit-linux-amd64"
+        sha256 checksums["gitflow-toolkit-linux-amd64"]
+      else
+        url "https://github.com/mritd/gitflow-toolkit/releases/download/v#{version}/gitflow-toolkit-linux-386"
+        sha256 checksums["gitflow-toolkit-linux-386"]
+      end
+    end
+
+    on_arm do
+      if Hardware::CPU.is_64_bit?
+        url "https://github.com/mritd/gitflow-toolkit/releases/download/v#{version}/gitflow-toolkit-linux-arm64"
+        sha256 checksums["gitflow-toolkit-linux-arm64"]
+      else
+        url "https://github.com/mritd/gitflow-toolkit/releases/download/v#{version}/gitflow-toolkit-linux-armv7"
+        sha256 checksums["gitflow-toolkit-linux-armv7"]
+      end
+    end
+  end
+
+  def install
+    binary_name = stable.url.split("/").last
+    bin.install binary_name => "gitflow-toolkit"
+
+    # Create git subcommand symlinks
+    %w[ci ps feat fix docs style refactor test chore perf hotfix].each do |cmd|
+      bin.install_symlink "gitflow-toolkit" => "git-#{cmd}"
+    end
+  end
+
+  def caveats
+    <<~EOS
+      Git subcommands have been installed:
+        git ci       - Interactive commit
+        git ps       - Push with TUI
+        git feat     - Create feature branch
+        git fix      - Create fix branch
+        ... and more
+
+      For AI-powered commit generation, configure your LLM:
+        git config --global gitflow.llm-api-key "your-api-key"
+    EOS
+  end
+
+  test do
+    assert_match version.to_s, shell_output("#{bin}/gitflow-toolkit -v")
+  end
+end

Taskfile.yml

@@ -124,6 +124,13 @@ tasks:
       - task: linux-arm64
       - task: darwin-amd64
       - task: darwin-arm64
+      - task: checksums
+
+  checksums:
+    desc: Generate checksums.txt for release
+    cmds:
+      - cd dist && shasum -a 256 gitflow-toolkit-* > checksums.txt
+      - cat dist/checksums.txt
 
   default:
     desc: Build for current platform