Function resolve_reference 

pub fn resolve_reference(
    reference: &str,
    graph: &ContentGraph,
    from_path: &str,
) -> ResolvedRef

Resolve a reference string against the content graph.

This is a thin wrapper over ContentGraph::resolve_path that returns a typed ResolvedRef instead of Option<String>.

Arguments

• reference — the link target (e.g. "hello", "posts/hello.md")
• graph — the content graph to search
• from_path — the file containing the link (for disambiguation)