Fix: Add missing out_file parameter to render_bricks_safe() in CLIP flow

- Fixed TypeError in CLIP text-to-ldr rendering (line 290)
- Added render_path creation before calling render_bricks_safe()
- Now matches original demo's calling pattern (line 399-402)
- Original file upload flow unchanged and still correct
- Bug was introduced when adding CLIP feature, not in original demo.zip

code/demo.py

@@ -287,7 +287,10 @@ def unified_input_handler(file, text_query):
 
             # Render the GPT-generated LDR file
             print(f"🎨 Rendering GPT-generated LEGO design...")
-            rendered_image = render_bricks_safe(new_ldr_path)
+            render_filename = f"generated_{uuid.uuid4()}.png"
+            render_path = os.path.join(TMP_DIR, render_filename)
+            render_bricks_safe(new_ldr_path, render_path)
+            rendered_image = render_path
 
             # Update status message with generation info
             enhanced_status = f"✨ Generated from car_{car_id} (confidence: {confidence*100:.1f}%)\n🤖 GPT model created new assembly sequence\n{status}"