- Add libgit2 as a dependency in CMake build system
- Register bun:git module in HardcodedModule.zig and isBuiltinModule.cpp
- Create JSGit.h with class declarations for Repository, Commit, Branch, etc.
- Implement JSGitRepository with constructor, static methods (find, init, clone)
- Implement JSGitCommit with sha, message, author, parents, diff, getFile
- Add iso subspaces for all git classes
- Add structure caching in ZigGlobalObject
Co-Authored-By: Claude <noreply@anthropic.com>
