Evaluation: Resolve 429 Rate limit

Is your feature request related to a problem?
After running an evaluation batch, clicking on results triggers a 429 Rate limit error from Langfuse. This prevents users from accessing evaluation results, causing frustration and inefficiency.

raise ApiError(status_code=_response.status_code, body=_response.text)
langfuse.api.core.api_error.ApiError: status_code: 429, body: 429 - rate limit exceeded

Describe the solution you'd like

• Investigate and resolve the cause of the 429 Rate limit error.
• Implement better rate limit handling or notifications for users.
• Ensure users can access results without interruptions after evaluation batch completion.

Screenshots