Summary

Aligning the Map override signature with EndpointGroupBase is a solid improvement for consistency across the endpoint registration surface.

In particular, renaming rateLimitPolicy to rateLimitPolicyName makes the parameter’s intent much clearer and avoids the ambiguity around whether we’re passing a policy instance vs. a string key. This matches how the rest of the endpoint group extensions refer to rate-limiting configuration and helps reinforce the pattern for contributors working in this area.

The added XML documentation is also appreciated. It clarifies how the rate-limiting policy name flows from endpoint mapping through to the middleware pipeline, which was previously implicit and required reading internal code to understand. Having this documented in the public surface area reduces onboarding friction for future contributors and keeps the API self-describing.

As noted, there are no behavioral changes — just naming and documentation alignment — which keeps this low risk and improves consistency and maintainability.

I was unable to run dotnet build locally due to the repository currently targeting .NET 9.0 and my environment having only .NET SDK 8.0.415, but the changes here are isolated and do not appear to affect the underlying logic or runtime behavior.

Overall, this cleanup is a meaningful quality-of-life improvement for contributors working in the endpoint grouping layer.

Closes #607 👍