Add react-native-leap to Community Projects

[hung-yueh]

What

Adds react-native-leap to the Community Projects → Deployment table: React Native & Expo bindings for the LEAP SDK (current 0.10.x KMP generation) via Nitro Modules.

On npm as react-native-leap, MIT-licensed. Feature coverage, all validated end-to-end on a physical iPhone and the Android emulator:

• Streaming chat with typed events and per-generation stats (tok/s, KV-cache hits)
• Grammar-constrained JSON at the token level, from a Zod v4 schema or raw JSON Schema
• Tool calling with an automatic model↔tool loop
• Thinking models (separate reasoning stream), vision (LFM2.5-VL), and voice (LFM2.5-Audio speech-to-speech with streamed PCM + captions)
• Model management via the LEAP model library (download progress, memory pre-flight) or sideloaded GGUFs
• A Vercel AI SDK provider, @react-native-leap/ai, so LEAP models work with streamText / generateObject from the ai package
• Expo config plugin for prebuild / dev-client workflows

LEAP binaries are not re-hosted: iOS fetches Liquid's official XCFramework release at install time (SHA-256-verified), Android pulls ai.liquid.leap:* from Maven Central.

Placed next to the existing React Native entry (expo-leap-sdk, which targets the legacy 0.9 iOS/Android SDKs); this one wraps the unified 0.10.x SDK.