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

docs/terminal/index.mdx

@@ -5,13 +5,13 @@ sidebar:
   label: Overview
 ---
 
-kitty is the primary terminal. It runs in three modes: plain kitty (kitty owns splits and tabs), a tmux host, and a herdr host. Ghostty is kept as a secondary terminal whose bindings drive herdr the same way.
+kitty is the primary terminal. It runs in three modes: plain kitty (kitty owns splits and tabs), a tmux host, and a herdr host. Ghostty is a tmux-only terminal: every window attaches to tmux, and its `ctrl+shift` chords drive tmux.
 
 | Page | Source | What it covers |
 | --- | --- | --- |
 | [kitty](/terminal/kitty) | `dot_config/kitty/` | Main config, host configs (tmux, herdr, goliath), kittens, custom tab bar |
-| [Ghostty](/terminal/ghostty) | `dot_config/ghostty/` | Config, herdr key sync, themes |
-| [tmux](/terminal/tmux) | `dot_config/tmux/` | Prefix, bindings, tpm plugins, dotbar status line, Niri titles |
+| [Ghostty](/terminal/ghostty) | `dot_config/ghostty/` | tmux-only terminal: ctrl+shift chords → tmux, themes |
+| [tmux](/terminal/tmux) | `dot_config/tmux/` | Prefix, bindings, kitty-style tabs with Nerd Font icons, resurrect/continuum persistence, Niri titles |
 | [herdr](/terminal/herdr) | `dot_config/herdr/`, `dot_config/herdr-nvim/` | Agent-aware multiplexer: keys, theme, plugins, Claude hook |
 
 ## Shared conventions