pub fn pattern_match(
graph: &MaterializedGraph,
type_sequence: &[&str],
max_results: usize,
) -> Vec<Vec<String>>Expand description
Pattern match: find chains matching a sequence of node types connected by edges.
E.g., ["signal", "rule", "plan", "action"] finds all MAPE-K loops.
Returns list of chains, each chain being a list of node_ids.
Find chains of nodes matching a type sequence (e.g., ["signal", "rule", "plan"]).
Complexity: O(n * b^d) where n = nodes of first type, b = average branching,
d = sequence length. Bounded by max_results to prevent runaway expansion on
dense graphs. Cycle-safe: a node cannot appear twice in the same chain.