Support Homebrew raylib 5.5 and 6.0
## Summary A user reported that `artemis-ii-tracker` does not build on macOS with Homebrew raylib. The compiler errors are coming from `kit-raylib`: the C wrapper uses raylib 6.0-specific APIs while a normal Homebrew install can expose raylib 5.5 headers/libs, especially on Apple Silicon. Reference: https://gitlab.com/avitkauskas Reddit context: https://www.reddit.com/r/kit_lang/comments/1u6bb3w/raylib_still_doesnt_work_for_me/ ## Evidence - Reported failing header path: `/opt/homebrew/include/raylib.h`. - Local reproduction against Homebrew raylib 5.5 fails on API differences including `DrawCircleGradient`, `ModelAnimation.keyframeCount/keyframePoses`, `Model.skeleton`, `FileRename`, `FileTextReplace`, `GetKeyName`, `ComputeSHA256`, `DrawLineDashed`, and related raylib 6.0 additions. - Local Intel macOS works because raylib 6.0 is linked. ## Acceptance Criteria - `kit-raylib` builds against Homebrew raylib 5.5. - `kit-raylib` continues to build against raylib 6.0. - Existing Kit-facing APIs remain source-compatible. - Package checks/tests pass.
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