- Add connected-path tests for mysql, sql-server, and postgresql using
mocked drivers (mysql2/promise, mssql, pg) covering
connect, query, transaction, and disconnect scenarios
- Fix tautological assertion in auth-flow.test.ts (hasError >= 0 was always true)
- Add tests/integration to vitest exclude list to prevent
module cache pollution under isolate:false
- Set isolate to true for CI, false for local dev (was: isolate false)