1. Check if the X-Square-OpenAPI-Key is configured and valid.
2. If the key is missing or invalid, prompt the user to provide a valid API key.
3. If the content is missing, prompt the user to provide the content to be posted.
4. Optimize the content for readability and ask the user to confirm the optimized version or use the original.
5. Send the content to the Binance Square API.
6. Handle potential errors from the API.
7. If the post is successful, return the post URL to the user.
8. If the post is successful but the URL is unavailable, inform the user and suggest checking the Square page manually.