feat: merge-train/spartan

.claude/skills/update-doc-references/SKILL.md

@@ -1,3 +1,8 @@
+---
+name: update-doc-references
+description: Analyze source-file changes referenced by documentation, update affected docs when needed, and report documentation reference updates for a PR.
+---
+
 # Update Documentation References
 
 When source files referenced by documentation change in a PR, analyze the

yarn-project/world-state/src/native/native_world_state.test.ts

@@ -961,6 +961,9 @@ describe('NativeWorldState', () => {
       await expect(delayedFork.getSiblingPath(MerkleTreeId.NULLIFIER_TREE, 0n)).rejects.toThrow('Fork not found');
 
       await sleep(closeDelayMs * 3);
+      const closePromise = (delayedFork as any).closePromise;
+      expect(closePromise).toBeDefined();
+      await closePromise;
 
       expect(warnSpy).not.toHaveBeenCalled();
       expect((ws as any).instance.queues.has(forkId)).toBe(false);