- Change tap test signatures from async (t) => to async () =>
- Replace t.ok(), t.notOk(), t.equal() with expect() assertions
- Fix import paths for helpers to use correct ../../helpers/ path
- Update PerformanceTracker to use instance version
- Add missing expect imports from tapbundle
- Remove t.end() calls that are no longer needed
- Ensure all tests have tap.start() for proper execution
