Add bun to Node setup

Zsh/.zsh_prompt

@@ -233,7 +233,7 @@ build_prompt() {
         [ -z "$python_version" ] || tool_versions+=("%F{magenta} ${python_version}%f")
     fi
 
-    if project_has_pattern '**/package.json' '**/.nvmrc' '**/pnpm-workspace.yaml' '**/yarn.lock' '**/package-lock.json'; then
+    if project_has_pattern '**/package.json' '**/.nvmrc' '**/pnpm-workspace.yaml' '**/yarn.lock' '**/package-lock.json' '**/bun.lock' '**/bun.lockb'; then
         node_version="$(get_command_version node)"
         [ -z "$node_version" ] || tool_versions+=("%F{green} ${node_version}%f")
     fi

Zsh/.zshrc

@@ -219,6 +219,13 @@ bindkey '^[OA' history-substring-search-up
 bindkey '^[[B' history-substring-search-down
 bindkey '^[OB' history-substring-search-down
 
+# bun
+export BUN_INSTALL="$PROG_DIR/node/bun"
+case ":$PATH:" in
+  *":$BUN_INSTALL/bin:"*) ;;
+  *) export PATH="$BUN_INSTALL/bin:$PATH" ;;
+esac
+
 # pnpm
 export PNPM_HOME="$PROG_DIR/node/pnpm"
 case ":$PATH:" in