protograph-core 0.1.0

Core types and SDL parsing for protograph
Documentation
# protograph-core

Core types and SDL parsing for [protograph](https://github.com/alexchoi0/protograph).

This crate provides:
- GraphQL SDL parser with custom directive support
- AST types (`ProtographSchema`, `EntityType`, `Field`, `Relationship`)
- Schema validation

## Usage

This is an internal crate. Most users should use `protograph-build` instead.

```rust
use protograph_core::{parse_schema_file, validate_schema};

let schema = parse_schema_file(sdl_content)?;
validate_schema(&schema)?;
```

## License

MIT OR Apache-2.0