docs: remove obsolete Claude Code and omp docs, update references

docs/chezmoi/scripts.mdx

@@ -15,7 +15,7 @@ Six scripts run during `chezmoi apply`. Four live in `.chezmoiscripts/`, a direc
   <Step title="20-gh-extensions (after, onchange)">Install gh extensions.</Step>
   <Step title="25-skills (after, onchange)">Install and prune agent skills.</Step>
   <Step title="30-user-services (after, once)">Enable systemd user units on Linux.</Step>
-  <Step title="40-post (after, onchange)">tpm clone, bat cache, font cache.</Step>
+  <Step title="40-post (after, onchange)">bat cache, font cache.</Step>
   <Step title="build-bat-cache (after, onchange)">Rebuild bat cache when its theme or config changes.</Step>
   <Step title="install-yazi-plugins (after, onchange)">Reinstall yazi plugins when the manifest changes.</Step>
 </Steps>
@@ -103,11 +103,10 @@ Other personal automation units (brain-lens, omp-loop, rclone, hermes, voxtype)
 
 | Step | Condition | Action |
 | --- | --- | --- |
-| tmux plugin manager | `tmux` installed and `~/.config/tmux/plugins/tpm` missing | `git clone --depth=1 https://github.com/tmux-plugins/tpm ~/.config/tmux/plugins/tpm` |
 | bat cache | `bat` installed | `bat cache --build` |
 | Font cache | Linux, `fc-cache` installed | `fc-cache -f` |
 
-Each step ignores failures (`|| true`). `tmux.conf` expects tpm at that path; see [tmux](/terminal/tmux).
+Each step ignores failures (`|| true`). tpm is cloned by [`.chezmoiexternal.toml`](/chezmoi/externals-and-ignore#externals), not here.
 
 ## build-bat-cache [#build-bat-cache]