Module result_normalizer 

Result normalization - converts internal representations to user-facing types.

Enforces type system invariants:

• All nodes must be Value::Node (not Value::Map with _vid/_labels)
• All edges must be Value::Edge (not Value::Map with _eid/_type)
• All paths must be Value::Path
• No internal fields exposed in user-facing results

Structs

ResultNormalizer

Converts raw executor output into clean user-facing value types.