Function load_source_bytes 

pub fn load_source_bytes(
    path: &Path,
    bytes: &[u8],
) -> Result<LoadedSource, LoadError>

Load captured .gltf or .glb bytes with immutable raw-source facts.

bytes is both the parser input and the authority for animsmith_core::InputIdentity. This self-contained entry point refuses safe relative external declarations because captured bytes alone do not authorize a local filesystem root; use load_source_bytes_with_resource_root for such inputs.

Errors

Returns LoadError under the same conditions as load_bytes. A source-facts projection limit produces a successful value with partial coverage.