`but handle` command

[schacon]

It would be nice to have a CLI way to do what the mcp server does - take the work in progress, a prompt and create a commit message for it.

❯ but handle "[the last prompt]"
Generating commit message from prompt...
Commit created for the following changed files:
  -  x5 M Gemfile
  -  gd A app/controllers/bookmarks_controller.rb
  -  n4 A app/models/bookmark.rb
  -  qa M app/models/user.rb
  
● af31a03 Add like, unlike, and liked? methods to User model