Add example images for UI testing (with LFS)

- Added 3 sample images (beach, park, street scenes)
- Integrated Gradio Examples component for quick testing
- Users can now try the app without uploading their own images
- Improves onboarding and demo experience
- Images tracked with Git LFS

.gitattributes

@@ -33,3 +33,5 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+*.jpg filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text

app.py

@@ -709,6 +709,17 @@ def create_interface() -> gr.Blocks:
                             height=400
                         )
                         
+                        # Example images for quick testing
+                        gr.Examples(
+                            examples=[
+                                ["examples/beach_litter.jpg", "Ocean Beach", "Found near the boardwalk"],
+                                ["examples/park_trash.jpg", "Central Park", "Next to playground area"],
+                                ["examples/street_waste.jpg", "Main Street", "Corner of 5th Avenue"],
+                            ],
+                            inputs=[image_input, location_input, notes_input],
+                            label="📸 Try these examples to test the app"
+                        )
+                        
                         notes_input = gr.Textbox(
                             label="📝 Additional Notes (optional)",
                             placeholder="e.g., Near the playground, behind the dumpster, next to parking lot...",