Only run a check on button press, not on paste/upload

Removed the image upload/paste auto-trigger; pasting now just loads the
image and the user presses the button to analyze.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app.py

@@ -113,15 +113,12 @@ with gr.Blocks(title="TemperCheck") as demo:
             result = gr.Markdown(label="Verdict")
             with gr.Accordion("Raw model output (agent trace)", open=False):
                 raw = gr.Code(label="raw")
-    # Disable the button while a check runs (both the click and the paste/upload
-    # path), then re-enable it. analyze() never raises, so the final .then always
-    # restores the button.
+    # Only the button runs a check — pasting/uploading just loads the image.
+    # Disable the button while the check runs, then re-enable it; analyze() never
+    # raises, so the final .then always restores the button.
     go.click(_disable_button, None, go).then(
         analyze, inputs=image_in, outputs=[result, raw]
     ).then(_enable_button, None, go)
-    image_in.upload(_disable_button, None, go).then(
-        analyze, inputs=image_in, outputs=[result, raw]
-    ).then(_enable_button, None, go)
     gr.Markdown(f"<sub>Backend: `{get_backend_name()}`</sub>")
     demo.load(None, None, None, js=PASTE_JS)