Find all paths between two nodes (BFS)
Get all nodes that depend on nodeId (reverse traversal)
OptionaledgeType: EdgeTypeImpact analysis: "what breaks if nodeId changes?" Traverses REQUIRES edges transitively to find all affected nodes.
Get all nodes directly related to nodeId, optionally filtered by edge type
OptionaledgeType: EdgeTypeStaticfrom
Detect CONTRADICTS edges — find conflicting claims/policies