used for server-side route binding, and refactor documentation and
templates to treat the client as a first-class contract consumer.
Key changes:
- Add OpenAPI-first client module based on httpx
- Document client usage alongside server-side binder usage
- Update mkdocs navigation to include client documentation
- Refactor CRUD and model app templates to call APIs via operationId
instead of hardcoded paths
- Align package documentation and public API surface with client support
- Clarify server/client dependency split (fastapi vs httpx)
This establishes strict symmetry between OpenAPI-driven server binding
and OpenAPI-driven client invocation, reinforcing OpenAPI as the single
source of truth on both sides of the contract.
