Using `chezmoi destory <folder synced by chezmoiexternal.toml>` Will cause the entire chezmoi HOME folder to be cleaned or deleted.

[ylchen07]

Describe the bug

Using chezmoi destory <folder synced by chezmoiexternal.toml> Will cause the entire chezmoi HOME folder to be cleaned or deleted.

To reproduce

1. Define a git-repo in the external.toml file to sync it with some local directory
2. use chezmoi destory command to remove the folder in sync under ~ , not in the chezmoi HOME folder
3. You will find all the content inside default chezmoi path get cleaned .local/share/chezmoi become an empty folder.

Expected behavior

1. forbbiden to use destory command to clean a folder that user don't want in-sync any more.
2. chezmoi destory a sync folder will lead chezmoi change the external config file automatically

Output of command with the --verbose flag

Output of chezmoi doctor

$ chezmoi doctor
RESULT    CHECK                       MESSAGE
ok        version                     v2.66.1, commit 94b95eb0b6bf91e48dd7b584a80ad60d44d8de4d, built at 2025-10-19T22:03:22Z, built by Homebrew
ok        latest-version              v2.66.1
ok        os-arch                     linux/amd64 (Fedora Linux 42 (Workstation Edition))
ok        uname                       Linux MTL-CA763.ubisoft.org 6.17.5-200.fc42.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Oct 24 14:10:01 UTC 2025 x86_64 GNU/Linux
ok        go-version                  go1.25.3 (gc)
ok        executable                  /home/linuxbrew/.linuxbrew/Cellar/chezmoi/2.66.1/bin/chezmoi
ok        upgrade-method              brew-upgrade
ok        config-file                 found ~/.config/chezmoi/chezmoi.yaml, last modified 2025-10-28T12:20:53-04:00
warning   source-dir                  ~/.local/share/chezmoi is a git working tree (dirty)
ok        suspicious-entries          no suspicious entries
warning   working-tree                ~/.local/share/chezmoi is a git working tree (dirty)
ok        dest-dir                    ~ is a directory
error     hardlink                    failed creating hardlink from ~/.local/share/chezmoi to /tmp: link ~/.local/share/chezmoi/.chezmoi-doctor-hardlink-test /tmp/chezmoi-doctor1700788802/.chezmoi-doctor-hardlink-test: invalid cross-device link
ok        umask                       022
ok        cd-command                  found /usr/bin/zsh
ok        cd-args                     /usr/bin/zsh
info      diff-command                not set
ok        edit-command                found /home/linuxbrew/.linuxbrew/bin/nvim
ok        edit-args                   /home/linuxbrew/.linuxbrew/bin/nvim
ok        git-command                 found /usr/bin/git, version 2.51.0
ok        merge-command               found /usr/bin/vimdiff
ok        shell-command               found /usr/bin/zsh
ok        shell-args                  /usr/bin/zsh
info      age-command                 age not found in $PATH
ok        gpg-command                 found /home/linuxbrew/.linuxbrew/bin/gpg, version 2.4.8
info      pinentry-command            not set
info      1password-command           op not found in $PATH
info      bitwarden-command           bw not found in $PATH
info      bitwarden-secrets-command   bws not found in $PATH
info      dashlane-command            dcli not found in $PATH
info      doppler-command             doppler not found in $PATH
ok        gopass-command              found /home/linuxbrew/.linuxbrew/bin/gopass, version 1.15.18
info      keepassxc-command           keepassxc-cli not found in $PATH
info      keepassxc-db                not set
info      keeper-command              keeper not found in $PATH
info      lastpass-command            lpass not found in $PATH
info      pass-command                pass not found in $PATH
info      passhole-command            ph not found in $PATH
info      rbw-command                 rbw not found in $PATH
ok        vault-command               found /home/linuxbrew/.linuxbrew/bin/vault, version 1.20.4
ok        secret-command              found /home/linuxbrew/.linuxbrew/bin/gh

Additional context

Add any other context about the problem here.