Add ghostty-tmux startup script

ghostty/config

@@ -20,6 +20,7 @@ scrollback-limit = 10000
 window-inherit-working-directory = true
 copy-on-select = clipboard
 shell-integration-features = no-cursor
+command = ~/.config/ghostty/ghostty-tmux
 
 # macOS-specific settings
 alpha-blending = linear

ghostty/ghostty-tmux

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+SESSION_NAME="ghostty"
+
+# Check if the session already exists
+tmux has-session -t "$SESSION_NAME" 2>/dev/null
+
+if [ $? -eq 0 ]; then
+    # If the session exists, reattach to it
+    tmux attach-session -t "$SESSION_NAME"
+else
+    # If the session doesn't exist, start a new one
+    tmux new-session -s "$SESSION_NAME" -d
+    tmux attach-session -t "$SESSION_NAME"
+fi