chore: remove Ruby implementation and tooling

bin/homesick

@@ -1,9 +1,11 @@
-#!/usr/bin/env ruby
+#!/usr/bin/env bash
+set -euo pipefail
 
-require 'pathname'
-lib = Pathname.new(__FILE__).dirname.join('..', 'lib').expand_path
-$LOAD_PATH.unshift lib.to_s
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+repo_root="$(cd "$script_dir/.." && pwd)"
 
-require 'homesick'
+if [[ -x "$repo_root/dist/homesick-go" ]]; then
+	exec "$repo_root/dist/homesick-go" "$@"
+fi
 
-Homesick::CLI.start
+exec go run "$repo_root/cmd/homesick" "$@"