Smithy HTTP

Smithy-http provides foundational HTTP components and primitives for Smithy tooling in Python. It defines standard interfaces for HTTP requests, responses, headers, and middleware, ensuring compliance with Smithy's protocol specifications. This library is primarily a building block for Smithy-generated Python clients and other Smithy-compliant services. The current version is 0.4.0, and releases are generally tied to the development cadence of the broader `smithy-python` project.