Update app.py

app.py

@@ -1,4 +1,11 @@
+# app.py
+import os
+from dotenv import load_dotenv
+
+load_dotenv()
+
 from dvnc_ai_v2_hf.app import demo
 
 if __name__ == "__main__":
-    demo.launch()
+    port = int(os.getenv("PORT", "7860"))
+    demo.launch(server_name="0.0.0.0", server_port=port)