docs(docs): clarify Ghostty shortcuts and Shift+Enter behavior in documentation

docs/terminal/tmux.mdx

@@ -43,8 +43,12 @@ These settings are what [yazi](/tools/yazi) needs inside tmux. `allow-passthroug
 | `prefix /` | Copy mode, then search upward |
 | `prefix o` | tmux-sessionx: fuzzy-find, switch to, create, rename (`ctrl-r`), or kill (`alt-backspace`) sessions, with a preview |
 | `prefix t` | Project Tasks palette ([`pj-palette`](/shell/scripts#pj-palette)): install/dev/sync/make quick actions plus every `pj` task, each run in a full-width bottom split (25% of the window) |
+| `prefix y` / `prefix e` | Yazi / Neovim in a new window in the pane cwd (Ghostty `ctrl+shift+f` / `ctrl+shift+e`) |
+| `prefix g` | Lazygit in a 90% popup in the pane cwd (Ghostty `ctrl+shift+g`) |
+| `prefix a` | omp in a full-height split on the right, 33% of the window (Ghostty `ctrl+shift+a`) |
 | `prefix h` / `prefix v` | Split below / right, pane cwd |
 | `prefix x` | Kill pane |
+| `S-Enter` (no prefix) | Sends `ESC[13;2u` to the pane unchanged. With `extended-keys on`, tmux would otherwise turn Shift+Enter into plain Enter for apps that never requested extended keys, and coding agents (omp, Claude Code) would submit instead of inserting a newline |
 | `M-Enter` / `M-S-Enter` / `M-Escape` (no prefix) | Split below / split right / kill pane |
 | `C-h` / `C-j` / `C-k` / `C-l` (no prefix) | Vim-aware pane focus. In an nvim/vim/fzf pane (`@pane-is-vim`, set by smart-splits, or the pane's command), the key goes to nvim. nvim's `config.pane_nav` moves between its own splits and, at its outer edge, runs `tmux select-pane -t $TMUX_PANE`. Elsewhere tmux moves directly. Also bound in copy mode |
 | `prefix C-l` | Send `C-l` (clear screen) |
@@ -93,7 +97,7 @@ Labels longer than 27 characters end in `…`. The icon comes from tmux-nerd-fon
 | File | Contents |
 | --- | --- |
 | `commands.json` | The kitty launchers ported as palette items: **Lazygit** (90% popup in the pane's cwd; kitty `ctrl+shift+g`), **Yazi** (new window; kitty `ctrl+shift+f`), **Neovim Split** (nvim in a split to the left, 60% of the pane; alias `nv`; kitty `ctrl+shift+e`), **Shell History (atuin)** (`atuin-pick` in a 25% split below; kitty `ctrl+shift+p`). Also **btop** (80% popup; aliases `top`, `htop`), **mandible** (80% popup running [`mandible-pick`](/shell/scripts#mandible-pick); alias `man`), **television** (`tv channels`, the [channel picker](/tools/television), in a new window in the pane's cwd; alias `tv`), **gitframe** (git diff viewer in a new window in the pane's cwd; alias `gf`), **omp** (the omp agent in a full-height split on the right, 33% of the window; aliases `agent`, `ai`), **Project Tasks** (opens the tasks palette), **Sessions (sessionx)**, **Save Sessions**, and **Restore Sessions** (resurrect). Programs are started with `exec`, so the tab icon is the program's, not the shell's |
-| `palettes/tasks.json` | The **Project Tasks** palette (`prefix t`, Ghostty `ctrl+shift+space`), fed by [`pj-palette`](/shell/scripts#pj-palette): `bun install`, `bun run dev`, `uv sync`, `uv run python`, `make`, `go run .`, `cargo run` as Quick items when the project has them, then every task `pj` finds, grouped by tool. Each runs in a full-width split along the bottom (25% of the window) in its directory. `ctrl-c` stops a running task; once it has exited, `enter` or `ctrl-c` closes the pane |
+| `palettes/tasks.json` | The **Project Tasks** palette (`prefix t`, Ghostty `ctrl+shift+p` / `ctrl+shift+space`), fed by [`pj-palette`](/shell/scripts#pj-palette): `bun install`, `bun run dev`, `uv sync`, `uv run python`, `make`, `go run .`, `cargo run` as Quick items when the project has them, then every task `pj` finds, grouped by tool. Each runs in a full-width split along the bottom (25% of the window) in its directory. `ctrl-c` stops a running task; once it has exited, `enter` or `ctrl-c` closes the pane |
 | `hidden.json` | Hides the built-in **Switch Theme...** item, and with it the Appearance section: the palette stays on the fixed cyberdream `theme.json` |
 | `shortcuts.json` | Ghostty `ctrl+shift` chords shown next to the built-in items they trigger (New Window → `Ctrl+Shift+T`, …) |
 | `theme.json` | Cyberdream: bg `#16181a`, panel `#1e2124`, selected `#243348` (the active-tab plate), muted `#7b8496`, accent `#5ea1ff` |