iamjonatha 

Provider-independent, strongly typed decision domain model for .NET: questions, answers, results, and the decision provider abstraction. Contains no provider, HTTP or protocol code.

TypeSafe JEV provider for DecisionKit: protocol mapping, HTTP transport, authentication, error mapping, retry and idempotency.

Deterministic test doubles for DecisionKit: fake providers, canned results, request capture and error injection. No HTTP, no real provider calls.

Dependency injection, configuration binding, HttpClientFactory and logging integration for DecisionKit and the JEV provider.