Native git-lfs support for maw.
Provides pointer codec, content-addressed local object store, attributes
matching, HTTPS batch API client, and credential resolution — all in pure
Rust, with no subprocess invocations of git or git-lfs.
Scope
maw-lfs replaces git-lfs's filter-driver role for the checkout and
commit paths that maw owns. It is interoperable with git-lfs on disk:
pointer blobs and the .git/lfs/objects/ layout are bit-identical, so
running git lfs commands against the same repo works unchanged.
Non-goals
- LFS file locking, custom transfer adapters (SSH, tus, multipart).
- Replacing git-lfs for end users — this crate serves maw's internal checkout/commit paths only.