Switchyard Lib Core

Overview

Switchyard construction is profile-backed. A typed profile config owns how its runtime is built, and serving through the current Python endpoints adapts that runtime with ProfileSwitchyard. Do not reintroduce factories, recipes, middleware bundles, request/response pipeline wrappers, or resource-cache construction paths.

The chain executor still runs the same logical stages:

request-side work -> LLMBackend -> response-side work -> TranslationEngine

Profiles make that shape local to the behavior being implemented instead of splitting it across factory hooks and global registries.