[ZSH] Add .zprofile for brew in login shells, fix mac_config link

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

clone_and_link_mac.sh

@@ -9,12 +9,13 @@
 
 gln -Tsv $PWD/zsh $HOME/.zsh
 gln -Tsv ~/.zsh/.zshrc $HOME/.zshrc
+gln -Tsv ~/.zsh/.zprofile $HOME/.zprofile
 gln -Tsv $PWD/tmux $HOME/.tmux
 gln -Tsv ~/.tmux/.tmux.conf $HOME/.tmux.conf
 gln -Tsv $PWD/nvim $HOME/.config/nvim
 gln -Tsv $PWD/.config/alacritty $HOME/.config/alacritty
 gln -Tsv $PWD/zsh/.p10k.zsh_mac.example $PWD/zsh/.p10k.mac.zsh
-gln -Tsv $PWD/zsh/.mac_config.example $PWD/zsh/.mac_config
+gln -Tsv $PWD/zsh/.mac_config.zsh_mac.example $PWD/zsh/.mac_config.zsh
 gln -Tsv $PWD/zsh/.virtual_env_config.zsh_mac.example $PWD/zsh/.virtual_env_config.zsh
 gln -fsv $PWD/virtualenvwrapper/* $VIRTUALENVWRAPPER_HOOK_DIR
 gln -Tsv $PWD/update_mac.sh $HOME/update_mac.sh

zsh/.zprofile

@@ -0,0 +1,7 @@
+# Login shells that skip .zshrc (e.g. `su - user -c cmd`) still need brew on PATH.
+# Interactive shells rebuild PATH order later in .zshrc.
+if [[ -x /opt/homebrew/bin/brew ]]; then
+    eval "$(/opt/homebrew/bin/brew shellenv)"
+elif [[ -x /usr/local/bin/brew ]]; then
+    eval "$(/usr/local/bin/brew shellenv)"
+fi