docs(docs): expand terminal and tmux documentation with launch commands, prompts, persistence, and keybinding updates

docs/shell/bash-zsh.mdx

@@ -46,7 +46,8 @@ Interactive shells only (`[[ $- != *i* ]] && return`). In order:
 6. Sources `~/.config/zsh/keybinds.zsh`.
 7. `eval "$(suv init zsh)"` if suvadu is installed.
 8. Sources `~/.config/envman/load.sh` if it is non-empty.
-9. `eval "$(starship init zsh)"` if starship is installed.
+9. **Prompt.** If starship is installed: `eval "$(starship init zsh)"`, `ZLE_RPROMPT_INDENT=0` (the right-prompt clock sits flush with the edge), and a transient prompt. A `line-finish` zle hook swaps `PROMPT`/`RPROMPT` to the `transient` and `transient_right` starship profiles (`❯`, colored by the last exit status, and the time) and redraws, so past prompts collapse as in fish; a `precmd` hook restores the full prompt. Starship's zsh init also sets `PROMPT2`, the `∙` continuation prompt for unfinished lines. See [Starship](/shell/starship#shell-integration).
+   **Window title.** A `precmd` hook ports `fish_title`: it sets the terminal title to `%~`, prefixed with the first 10 characters of the hostname over SSH, and inside tmux also sets the window name (`ESC k`), like fish's `50-terminal-title.fish`. Unlike fish's `prompt_pwd`, the path is not abbreviated.
 10. `eval "$(tv init zsh)"` if `tv` is installed (<kbd>ctrl-t</kbd> smart autocomplete).
 11. **Syntax highlighting.** Sources the first `zsh-syntax-highlighting.zsh` found in `/usr/share/zsh/plugins/zsh-syntax-highlighting/`, `/opt/homebrew/share/zsh-syntax-highlighting/`, or `/usr/local/share/zsh-syntax-highlighting/`. The comment says this must stay last, because it wraps every zle widget defined before it.
 12. **atuin.** `eval "$(atuin init zsh)"` if atuin is installed. This line comes after the syntax-highlighting block, so despite the comment, syntax highlighting is not actually last. atuin loads after tv, so it keeps <kbd>ctrl-r</kbd>.

docs/shell/index.mdx

@@ -21,7 +21,7 @@ fish is the main interactive shell. bash and zsh are set up to feel the same: th
 | Concern | fish | bash | zsh |
 | --- | --- | --- | --- |
 | Aliases | `conf.d/20-aliases.fish` (hand-maintained) | `~/.config/shell/aliases.sh` (rendered from YAML) | same as bash |
-| Prompt | starship + transient prompt | starship | starship |
+| Prompt | starship + transient prompt | starship | starship + transient prompt |
 | History | atuin (hishtory also sourced if installed) | atuin | atuin, plus suvadu if installed |
 | Key bindings | vi mode plus custom binds | atuin defaults only | emacs keymap plus ports of the fish binds |
 | cd-style helpers | `functions/*.fish` | `~/.config/bash/functions/*.bash` | `~/.config/zsh/functions/*.zsh` |

docs/shell/starship.mdx

@@ -17,10 +17,12 @@ The file is not a template and applies on every role. `starship` is in `.chezmoi
 | --- | --- |
 | fish | `conf.d/40-tools.fish` runs `starship init fish`, then `config.fish` runs it again and calls `enable_transience` |
 | bash | `eval "$(starship init bash)"` in `~/.bashrc` |
-| zsh | `eval "$(starship init zsh)"` in `~/.zshrc` |
+| zsh | `eval "$(starship init zsh)"` in `~/.zshrc`, plus a transient-prompt hook |
 
 With transience in fish, past prompts in the scrollback collapse to the output of `starship_transient_prompt_func` (`starship module character`, the `❯` alone) and `starship_transient_rprompt_func` (`starship module time`). See [fish](/shell/fish#configfish).
 
+zsh has no built-in transience, so `~/.zshrc` collapses past prompts itself, rendering the `transient` (`$character`) and `transient_right` (`$time`) entries under `[profiles]` with `starship prompt --profile`. It uses profiles rather than `starship module` because only `starship prompt` wraps color escapes in zsh's `%{…%}`; without them zsh miscounts the right prompt's width. zsh also gets starship's default `∙` continuation prompt (`PROMPT2`). See [bash and zsh](/shell/bash-zsh#zshrc).
+
 ## Layout
 
 ```toml ~/.config/starship.toml