Sorting LiteLLM GitHub issues by difficulty to implement. Higher = harder.

{
The left issue is harder because it spans proxy-boundary request construction, metadata preservation semantics, and cascade regression coverage. The right issue is a localized URL-normalization change with a narrow test surface.
}
https://github.com/berriai/litellm/issues/31875 4:1 https://github.com/berriai/litellm/issues/25567