Layered library for blob/tree/commit/ref operations without touching
the working directory. Four modules: gitobj (primitives), branchstore
(key-value on a branch), snapshot (working dir captures), trailerlink
(commit message trailers). 56 tests.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Entire-Checkpoint: 1e40b3267885
