fix: Handle read gracefully when stdin is piped (check terminal with -t 0)

launcher.sh

@@ -80,6 +80,24 @@ run_module() {
     read -p "Press Enter to continue..." < /dev/tty
 }
 
+#############################################################################
+# TERMINAL INPUT HELPER
+#############################################################################
+
+# Safe read that handles both interactive and piped scenarios
+safe_read() {
+    local prompt="$1"
+    local varname="$2"
+
+    if [ -t 0 ]; then
+        # Terminal available, normal read
+        read -p "$prompt" "$varname"
+    else
+        # No terminal (piped stdin), accept input or skip
+        read -p "$prompt" "$varname" 2>/dev/null || eval "$varname=''"
+    fi
+}
+
 #############################################################################
 # SYSTEM INFO DISPLAY (Quick View)
 #############################################################################
@@ -674,7 +692,13 @@ startup_detection() {
         print_success "Detection complete! Cached for 1 hour."
         echo ""
 
-        read -p "Press Enter to continue..." < /dev/tty
+        # Try to read from tty if available, otherwise from stdin
+        if [ -t 0 ]; then
+            read -p "Press Enter to continue..."
+        else
+            # stdin available (e.g., from pipe), use it
+            read -p "Press Enter to continue..." || true
+        fi
     fi
 }
 
@@ -688,7 +712,17 @@ main() {
 
     while true; do
         show_main_menu
-        read -r choice < /dev/tty
+
+        # Handle read with/without terminal
+        if [ -t 0 ]; then
+            read -r choice
+        else
+            read -r choice || {
+                echo ""
+                echo "stdin closed, exiting launcher"
+                exit 0
+            }
+        fi
 
         case $choice in
             1) run_module "diagnostics" "system-health-check.sh" ;;