feat: add zsh

.gitignore

@@ -9,3 +9,4 @@ cn.sh
 __pycache__
 Makefile
 .claude/
+script/clash.sh

script/zsh-init.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+set -euo pipefail
+
+DOTFILE="${DOTFILE:-$HOME/.dotfile}"
+ZSHRC_REPO="$DOTFILE/zsh/.zshrc"
+ZSHRC_HOME="$HOME/.zshrc"
+
+echo "Link zshrc"
+if [[ -f "$ZSHRC_HOME" && ! -L "$ZSHRC_HOME" ]]; then
+  mv "$ZSHRC_HOME" "$ZSHRC_HOME.bak"
+  echo "  已备份原文件 -> $ZSHRC_HOME.bak"
+fi
+ln -sf "$ZSHRC_REPO" "$ZSHRC_HOME"
+echo "  $ZSHRC_HOME -> $ZSHRC_REPO"
+
+if [[ ! -d "$HOME/.oh-my-zsh" ]]; then
+  echo "安装 Oh My Zsh（--unattended：不改默认 shell、不自动进 zsh；--keep-zshrc：保留已链接的 .zshrc）…"
+  sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended --keep-zshrc
+else
+  echo "Oh My Zsh 已存在，跳过安装 (~/.oh-my-zsh)"
+fi
+
+echo ""
+echo "完成。当前仓库的 .zshrc 已启用 z 插件（Oh My Zsh plugins/z）。"
+echo "未修改默认登录 shell；若需临时使用: zsh"
+echo "本机额外配置可写入 ~/.zshrc.local（不会被链接覆盖）。"

zsh/.zshrc

@@ -0,0 +1,18 @@
+# Oh My Zsh（由 ~/.dotfile/script/zsh-init.sh 安装到 ~/.oh-my-zsh）
+export ZSH="$HOME/.oh-my-zsh"
+ZSH_THEME="robbyrussell"
+
+# z：目录跳转频率学习（OMZ 自带 plugins/z）
+plugins=(
+  git
+  z
+)
+
+if [[ -d "$ZSH" ]]; then
+  source "$ZSH/oh-my-zsh.sh"
+else
+  echo "[zsh] Oh My Zsh 未安装，请运行: bash ~/.dotfile/script/zsh-init.sh" >&2
+fi
+
+# 本机私有配置（不纳入 dotfile）
+[[ -f "$HOME/.zshrc.local" ]] && source "$HOME/.zshrc.local"