The project's compiled binary (AniTrack) was not covered by existing
gitignore patterns. Only platform-specific extensions like .exe, .dll,
.so, and .dylib were ignored. Add the bare binary name to prevent the
locally-built executable from appearing as an untracked file.
Add *.tar.gz pattern to build directory exclusion in .gitignore to prevent
build artifacts like Anitrack-0.5.2.tar.gz from being committed to the
repository. These generated files are ephemeral build outputs that should
not be tracked in version control.
