Headless React Native wrapper for CopilotKit. Provides a lightweight
CopilotKitProvider and re-exports platform-agnostic hooks from
react-core without pulling web dependencies (no DOM, CSS, Radix,
Lit, A2UI). Includes XHR-based streaming fetch polyfill for Hermes
and granular polyfills for streams, encoding, crypto, DOM, and
location APIs.
Maxim