[ZSH] Path fixes

zsh/.zshrc

@@ -146,9 +146,9 @@ delzip() {
 export MITMPROXY_SSLKEYLOGFILE="~/.mitmproxy/sslkeylogfile.txt"
 
 [[ -f ~/.zsh/.mac_config.zsh ]] && source ~/.zsh/.mac_config.zsh
-if `which go &>/dev/null`; then
-    export PATH="$PATH:$(go env GOPATH)/bin"
-    export GOPATH=$(go env GOPATH)
+if (( $+commands[go] )); then
+    export GOPATH="$(go env GOPATH 2>/dev/null)"
+    [[ -n "$GOPATH" ]] && path+=("$GOPATH/bin")
 fi
 
 # Use safecp/safemv from the tools-repo when available (after ~/.local/bin is on PATH)
@@ -205,8 +205,9 @@ zstyle :bracketed-paste-magic paste-finish pastefinish
 
 # https://github.com/zsh-users/zsh-autosuggestions/issues/351
 ZSH_AUTOSUGGEST_CLEAR_WIDGETS+=(bracketed-paste)
-export PATH=$PATH:/Users/ising/.runai/bin
-runai_bin=/Users/ising/.runai/bin/runai
+[[ -d "$HOME/.lmstudio/bin" ]] && path+=("$HOME/.lmstudio/bin")
+[[ -d "$HOME/.runai/bin" ]] && path+=("$HOME/.runai/bin")
+runai_bin="$HOME/.runai/bin/runai"
 runai_completion=${ZDOTDIR:-$HOME}/.cache/zsh/runai-completion.zsh
 if [[ -x "$runai_bin" ]]; then
     if [[ ! -s "$runai_completion" || "$runai_bin" -nt "$runai_completion" ]]; then
@@ -226,7 +227,7 @@ fi
 # in via `-e VIRTUAL_ENV=...`, see .tmux.conf) we source the venv's activate
 # script here rather than in .virtual_env_config.zsh. activate snapshots the
 # current PATH into _OLD_VIRTUAL_PATH and restores it on `deactivate`; if we
-# activated earlier (before .mac_config.zsh, go, runai below all prepend to
+# activated earlier (before .mac_config.zsh, Go, Run:AI, and LM Studio mutate
 # PATH) that snapshot would be incomplete and `deactivate` would strip
 # ~/.local/bin & friends — dropping claude and co. off PATH. Keeping this last
 # guarantees the snapshot is the fully-built PATH.
@@ -235,6 +236,7 @@ fi
 #
 # A new tmux window clears the var to empty (`bind c ... -e VIRTUAL_ENV=`) to
 # force the base environment; drop that empty value so nothing sees a bogus venv.
+typeset -U path PATH
 [ -z "${VIRTUAL_ENV:-}" ] && unset VIRTUAL_ENV
 if [ -n "$VIRTUAL_ENV" ] && [ -f "$VIRTUAL_ENV/bin/activate" ]; then
     # Guard against double-activation on a manual `source ~/.zshrc`.