Finalize HAT satellite super-resolution interface

- Simplified interface to show input and full 4x resolution output only
- Removed all debug logging for clean production deployment
- Fixed image sizing with proper CSS targeting Gradio components
- Added download functionality for enhanced images
- Confirmed model working correctly (130x130 → 520x520 upscaling)
- Clean, user-friendly interface for satellite image enhancement

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -723,14 +723,13 @@ def upscale_image(image):
 
 
 # Gradio interface using Blocks for better layout control
-def upscale_and_resize_for_display(image):
+def upscale_and_display(image):
+    if image is None:
+        return None
+
     # Get the super-resolution output
     upscaled = upscale_image(image)
-
-    # Resize the upscaled image to match input size for display comparison
-    display_upscaled = upscaled.resize(image.size, Image.LANCZOS)
-
-    return display_upscaled
+    return upscaled
 
 # Custom CSS to make images fill containers while preserving aspect ratio
 css = """
@@ -751,7 +750,7 @@ css = """
 
 with gr.Blocks(css=css, title="HAT Super-Resolution for Satellite Images") as iface:
     gr.Markdown("# HAT Super-Resolution for Satellite Images")
-    gr.Markdown("Upload a satellite image to enhance its resolution by 4x using a fine-tuned HAT model. The output is resized to match the input size for easy comparison of quality improvements.")
+    gr.Markdown("Upload a satellite image to enhance its resolution by 4x using a fine-tuned HAT model. The output shows the full high-resolution enhanced image.")
 
     with gr.Row():
         with gr.Column():
@@ -773,13 +772,13 @@ with gr.Blocks(css=css, title="HAT Super-Resolution for Satellite Images") as if
                 interactive=False,
                 height=500,
                 width=500,
-                show_download_button=False
+                show_download_button=True
             )
 
     submit_btn = gr.Button("Enhance Image", variant="primary")
 
     submit_btn.click(
-        fn=upscale_and_resize_for_display,
+        fn=upscale_and_display,
         inputs=input_image,
         outputs=output_image
     )