Improve zsh hook handling and remove trustdb.gpg from symlinks

- Use add-zsh-hook for vcs_info precmd instead of overwriting precmd()
- Consolidate autoload for vcs_info and add-zsh-hook
- Remove trustdb.gpg from gnupg symlink list (auto-generated file)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: fumiya-kume

home/.zshrc

@@ -1,12 +1,12 @@
 # Prompt: built-in minimal Git prompt via vcs_info (no external deps)
-autoload -Uz vcs_info
+autoload -Uz vcs_info add-zsh-hook
 setopt prompt_subst
 zstyle ':vcs_info:*' enable git
 zstyle ':vcs_info:git*' formats '%F{magenta}(%b%u)%f'
 zstyle ':vcs_info:git*' actionformats '%F{magenta}(%b|%a%u)%f'
 zstyle ':vcs_info:*' unstagedstr '*'
 zstyle ':vcs_info:*' stagedstr '+'
-precmd() { vcs_info }
+add-zsh-hook precmd vcs_info
 PROMPT='%F{cyan}%n@%m%f %F{yellow}%~%f ${vcs_info_msg_0_}%# '
 setopt hist_ignore_all_dups inc_append_history hist_no_store hist_reduce_blanks share_history
 HISTFILE=~/.zsh_history

install.sh

@@ -86,7 +86,7 @@ if [[ -d "$DOTFILES_DIR/.gnupg" ]]; then
     [[ -e "$f" ]] || continue
     name="$(basename "$f")"
     case "$name" in
-      gpg-agent.conf|gpg.conf|pubring.kbx|trustdb.gpg|sshcontrol)
+      gpg-agent.conf|gpg.conf|pubring.kbx|sshcontrol)
         link "$f" "$HOME/.gnupg/$name"
         ;;
       *)