[MAC] Update Claude/Codex plugins and skills

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

setup_mac.sh

@@ -6,7 +6,7 @@
 # Distributed under terms of the MIT license.
 #
 
-brew install neovim tmux coreutils cmake golang jq npm prettier virtualenvwrapper fzf git-delta
+brew install neovim tmux coreutils cmake golang jq npm prettier virtualenvwrapper fzf git-delta skills
 brew install --cask font-fira-mono-nerd-font 1password-cli
 ./install_alacritty_mac.sh
 BREW_PREFIX="$(brew --prefix)"