Instructions:
• Click "Add Text" to add text or use the file input to upload an image.
• Click on an object to select it. When selected, a pulsing blue bounding box appears with two red handles:
  • Top handle: rotate the object
  • Bottom‑right handle: resize (stretch) the object
• Drag inside the object to move it. Click outside any object to deselect.
• Use "Undo" to remove the last object and "Save Design" to export your design as an image.