Update app.py

app.py

@@ -69,4 +69,12 @@ stream = Stream(
 )
 
 if __name__ == "__main__":
-    stream.ui.launch(server_port=7860)
+    import uvicorn
+    import os
+    
+    # Hugging Face Spaces provides the port via an environment variable, 
+    # but defaults to 7860.
+    port = int(os.getenv("PORT", 7860))
+    
+    # We bind to 0.0.0.0 to make the app accessible within the HF container
+    uvicorn.run(app, host="0.0.0.0", port=port)