Update app.py

app.py

@@ -97,11 +97,14 @@ def birth_certificate_figure(steps=2000):
     mcc = MCC()
     for t in range(steps):
         mcc.step(t)
-    # pick event if exists
+
     if not mcc.events:
-        return plt.figure()
-    event = mcc.events[0]
+        fig = plt.figure(figsize=(6, 4))
+        plt.text(0.5, 0.5, "No awareness event detected", ha='center', va='center', fontsize=14)
+        plt.axis('off')
+        return fig
 
+    event = mcc.events[0]
     fig = plt.figure(figsize=(12,10))
     gs = fig.add_gridspec(4, 1, height_ratios=[1,2,2,2], hspace=0.3)
 
@@ -175,5 +178,4 @@ with gr.Blocks() as demo:
     with gr.Accordion("📄 Project Document", open=False):
         gr.Markdown(DOC_TEXT)
 
-if __name__ == "__main__":
-    demo.launch()
+if __name__ ==