### Summary

Since kitty 0.47.0, `omarchy-cmd-terminal-cwd` always falls back to `$HOME`, so Super+Enter opens a new terminal in the home directory instead of the active terminal's cwd. Super+Alt+Enter (tmux) and Super+Alt+Shift+F (Nautilus in cwd) are affected too, since they call the same command.

### Cause

The script picks the shell by taking the terminal's highest-numbered child PID:

```bash
shell_pid=$(pgrep -P "$terminal_pid" | tail -n1)
```

kitty 0.47.0 added auto config reloading (`auto_reload_config`, enabled by default), which spawns a long-lived helper from `boss.py`:

```python
if opts.auto_reload_config >= 0 and not hasattr(self, 'config_reload_watcher_process') and opts.all_config_paths:
    self.config_reload_watcher_process = subprocess.Popen(
        [kitten_exe(), '__watch_conf__', str(os.getpid()), ...])
```

It's spawned after the shell, so it has a higher PID and `tail -n1` selects it:

```
192573  kitten __atexit__
192575  bash                    <- actual shell
192581  kitten __watch_conf__   <- tail -n1 picks this
```

`/usr/bin/kitten` isn't in `/etc/shells`, so the guard fails and the script echoes `$HOME`. On kitty <= 0.46 the shell happened to be the last child, so `tail -n1` worked by coincidence.

Only reproduced on kitty. ghostty and alacritty likely don't spawn a config watcher and are probably unaffected.

### Suggested fix

Scan every child and take the first one that is a real shell, rather than relying on PID ordering:

```bash
terminal_pid=$(hyprctl activewindow | awk '/pid:/ {print $2}')

if [[ -n $terminal_pid ]]; then
  for pid in $(pgrep -P "$terminal_pid"); do
    shell=$(readlink -f "/proc/$pid/exe" 2>/dev/null)
    grep -qsxF "$shell" /etc/shells || continue

    cwd=$(readlink -f "/proc/$pid/cwd" 2>/dev/null)
    if [[ -d $cwd ]]; then
      echo "$cwd"
      exit 0
    fi
  done
fi

echo "$HOME"
```

This also tightens the shell check: the current `grep -qs "$shell" /etc/shells` treats the path as a regex and matches substrings, so `/bin/sh` matches a `/bin/shell-foo` line. `grep -qsxF` matches the full line literally.

### Environment

- Omarchy 3.8.3 (`bec26eea`)
- kitty 0.47.4-1
- Hyprland 0.55.4
- Arch Linux