feat: add script catalog and -h help for all dotfile scripts

Introduce ff script -h with auto descriptions, shared help.sh, and usage flags across script/*.sh.

Co-authored-by: Cursor <cursoragent@cursor.com>

script/tmux-init.sh

@@ -1,20 +1,41 @@
-#/bin/bash
+#!/bin/bash
+# 链接 tmux 配置并安装 TPM 插件
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/common/help.sh"
+
+usage() {
+    cat <<'EOF'
+用法: tmux-init
+
+1. 将 ~/.tmux.conf 链接到 ~/.dotfile/tmux/.tmux.conf
+2. 克隆 tpm 到 ~/.tmux/plugins/tpm（若不存在）
+3. 安装插件并 reload tmux 配置
+
+选项:
+  -h, --help  显示此帮助
+EOF
+}
+
+dotfile_help_requested "${1:-}" && dotfile_show_help
+
+set -euo pipefail
 
 echo 'Init tmux config'
 src=$HOME/.tmux.conf
-if [ -e $src ]; then
-  mv $src $src.bak
+if [ -e "$src" ]; then
+    mv "$src" "$src.bak"
 fi
-ln -s $HOME/.dotfile/tmux/.tmux.conf $src
-
+ln -s "$HOME/.dotfile/tmux/.tmux.conf" "$src"
 
 echo 'Install tpm'
 if [ ! -e ~/.tmux/plugins/tpm ]; then
-  git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
+    git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
 fi
 
 echo 'Install tmux plugin by tpm'
-$HOME/.tmux/plugins/tpm/bin/install_plugins
+"$HOME/.tmux/plugins/tpm/bin/install_plugins"
 
 echo 'Reload tmux'
-tmux source ~/.tmux.conf
+tmux source ~/.tmux.conf