CRITICAL FIX: Use return instead of exit - prevent SSH session termination

launcher.sh

@@ -709,11 +709,9 @@ main() {
         show_main_menu
 
         # Read from terminal (use /dev/tty directly for interaction)
-        if read -r choice 2>/dev/null </dev/tty; then
+        if ! read -r choice 2>/dev/null </dev/tty; then
-            :  # Input read successfully
+            # No terminal available, return from function gracefully
-        else
+            return 0
-            # No terminal available, exit gracefully
-            exit 0
         fi
 
         case $choice in