Enhance the tenant API key service by introducing asynchronous throttling for the last_used_at updates during API key authentication. This change reduces database write frequency under high request rates, improving performance. Additionally, update tests to validate the throttling behavior, ensuring that last_used_at is only updated once per key within the defined interval. This implementation aligns with the goal of optimizing API key management and maintaining system efficiency.
wizardchen
b5cc7d2a28