Fix: update port to 8000 in main.py

main.py

@@ -44,4 +44,7 @@ async def generate(file: UploadFile = File(...)):
         shutil.copyfileobj(file.file, buffer)
 
     captions = caption_generator.generate_caption(temp_file)
-    return captions
+    return captions
+
+if __name__ == "__main__":
+    uvicorn.run(app, host="0.0.0.0", port=8000)