use-git-oid 0.0.1

Primitive Git object identifier vocabulary for RustUse
Documentation 
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# use-git-oid

Primitive `Git` object identifier vocabulary for `RustUse`.

`use-git-oid` validates object identifier text and models `SHA-1` and future-friendly `SHA-256` shapes. It does not hash content, read object storage, or resolve objects.

## Basic usage

```rust
use use_git_oid::{GitOid, GitOidKind, ShortGitOid};

let oid = GitOid::new("0123456789abcdef0123456789abcdef01234567").expect("valid oid");
let short = ShortGitOid::new("0123456").expect("valid short oid");

assert_eq!(oid.kind(), GitOidKind::Sha1);
assert_eq!(short.as_str(), "0123456");
```

## Scope

- Validate hexadecimal identifier text.
- Distinguish full and short object identifier shapes.
- Keep hashing and object lookup out of scope.