cpp/ now has its own CMakeLists.txt that independently fetches mlx-c
v0.4.1, allowing a CLion Claude to build and explore the C API surface
without conflicting with the Go-side CMake build. Updated CLAUDE.md to
reflect cpp/ as the project root with standalone build instructions.
Added priority tasks to cpp/TODO.md: mlx_contiguous search, eval
semantics verification, mlx_cumsum check for TopP sampling.
Co-Authored-By: Virgil <virgil@lethean.io>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
