Module validation 

Graph validation and integrity checking.

Provides functions to validate graph structure and detect issues such as orphan nodes, self-loops, duplicate edges, prerequisite cycles, and invalid canonical references.

Structs

ValidationIssue

A validation issue found in the graph.

ValidationResult

Result of graph validation.

Functions

is_valid

Quick check if graph has any validation errors.

validate_graph

Validate a graph for common issues.