Fix OpenAPI OperationId and add Summary/Description support

[codeswithfists]

Problem

When setting OperationId on a Wolverine HTTP route attribute (e.g. [WolverineDelete("/{id}", OperationId = "DeleteStaffMember")]), the value is ignored in the generated OpenAPI document. Instead, the operationId, summary, and description fields all default to a generated filename like DELETE_id.

This happens because HttpChain implements IEndpointNameMetadata, IEndpointSummaryMetadata, and IEndpointDescriptionMetadata, but is never added to the endpoint's metadata collection — so the .NET OpenAPI document generator never sees these values.

Changes

• Add EndpointNameMetadata(OperationId) to endpoint metadata in BuildEndpoint() so the OpenAPI generator picks up the user-provided OperationId
• Add Summary and Description properties to WolverineHttpMethodAttribute to allow setting these in OpenAPI documentation
• Fix IEndpointNameMetadata.EndpointName and IEndpointSummaryMetadata.Summary implementations on HttpChain to use user-provided values instead of ToString()

[jeremydmiller]

Got it, but it took some follow up work., Thank you!