Add undirected edge support to package runtime

dist/schema-ir.d.ts

@@ -13,6 +13,7 @@ export type FunctionRef = {
 };
 export type ConflictStrategy = "replace" | "preserve_conflicts" | "crdt";
 export type Cardinality = "optional_one" | "exactly_one" | "many" | "many_unique" | "many_ordered" | "many_unique_ordered";
+export type EdgeDirectionality = "directed" | "undirected";
 export type FieldStorageKind = "stored" | "derived" | "lazy" | "external" | "static_final";
 export type FieldStorage = {
     kind: FieldStorageKind;
@@ -65,6 +66,7 @@ export type EdgeEndpointSchema = {
 };
 export type EdgeSchema = {
     id: SymbolRef;
+    directionality: EdgeDirectionality;
     sourceField: string;
     fromClass: SymbolRef;
     toClass: SymbolRef;