Forked React Compiler

• this vendors the React Compiler (Rust port) into react-compiler/
• patches Cargo.toml to make it releasable — published to crates.io as nextjs_react_compiler_*
• license is "Copyright (c) Meta Platforms, Inc. and affiliates."

Why this exists

oxc and Rolldown need the React Compiler Rust port on crates.io, but published crates can't use git dependencies — every dependency must itself be on crates.io. The port lives in react/react and was never published, so this repo vendors it, patches the crates to be releasable, and publishes them as nextjs_react_compiler_*.

The source is synced over unchanged — the only edits are to Cargo.toml files (no code changes).