fix(zsh): move homebrew PATH to .zshenv for non-interactive shells

tmux-track-session runs via SSH as a non-interactive command, which
only sources .zshenv (not .zshrc). Without /opt/homebrew/bin in PATH,
the script silently fails to find tmux and falls through to creating
a new auto-numbered session on every reconnect instead of reattaching.

Author: ebkn

.zshenv

@@ -20,7 +20,7 @@ export LC_ALL="en_US.UTF-8"
 # Use terminal ANSI colors so bat inherits WezTerm's Everforest palette
 export BAT_THEME="ansi"
 
-export PATH="$HOME/.local/bin:$PATH"
+export PATH="/opt/homebrew/bin:$HOME/.local/bin:$PATH"
 export FZF_DEFAULT_COMMAND="fzf-files --label"
 export FZF_DEFAULT_OPTS="--style=minimal --ansi --tabstop=1 --delimiter=\\t --nth=-1 --accept-nth=-1 --preview='if [ -d {-1} ]; then ls -1 --color=always {-1}; else bat --color=always --style=numbers --line-range=:500 {-1}; fi' --bind=ctrl-d:preview-half-page-down,ctrl-u:preview-half-page-up"
 

.zshrc

@@ -1,7 +1,7 @@
 ENABLE_CORRECTION="true"
 
 # Start Tmux
-export PATH="/opt/homebrew/bin:$PATH"
+# /opt/homebrew/bin is added in .zshenv (needed by non-interactive shells too)
 # tmuxを自動起動し、tmux終了時にシェルも終了する
 [[ -z "$TMUX" ]] && tmux -u && exit