Imp is a full port of DSPy to the BEAM

Imp is a full port of DSPy (a framework for building language-model programs) to the BEAM/Elixir ecosystem, enabling developers to create typed, declarative AI-powered functions that can be automatically optimized. Unlike traditional prompt engineering, Imp lets users define task signatures that specify inputs and outputs, then uses optimizers to improve performance against labeled examples while maintaining the reliability and concurrency guarantees of OTP. The framework supports various reasoning approaches like chain-of-thought and ReAct, and allows building everything from single typed calls to long-running agent processes.