feat(zsh): add cursor setup script for enhanced shell integration

zsh/cursor.zsh

@@ -0,0 +1,10 @@
+#
+# Cursor Setup
+#
+
+if command-exists cursor-agent; then
+  alias cu="cursor-agent"
+
+  setup-completions cursor-agent "$(command-path cursor-agent)" \
+    cursor-agent shell-integration zsh
+fi

zsh/ruby.zsh

@@ -37,7 +37,6 @@ alias ru="bundle exec ruby"
 alias ra="bundle exec rake"
 alias rai="bundle exec rails"
 alias rs="bundle exec rspec -f doc"
-alias cu="bundle exec cucumber"
 alias scu="RAILS_ENV=cucumber bundle exec spring cucumber"
 
 # gems