Add convenience loader for Commands
user
```ruby
require File.expand_path(File.join(File.dirname(__FILE__), 'commands', 'base'))
require File.expand_path(File.join(File.dirname(__FILE__), 'commands', 'pick'))
require File.expand_path(File.join(File.dirname(__FILE__), 'commands', 'feature'))
require File.expand_path(File.join(File.dirname(__FILE__), 'commands', 'bug'))
require File.expand_path(File.join(File.dirname(__FILE__), 'commands', 'chore'))
require File.expand_path(File.join(File.dirname(__FILE__), 'commands', 'finish'))```
assistant