vm2 setup-sandbox.js violates Defense Invariant #11 in stack-trace formatter

Summary defaultSandboxPrepareStackTrace in lib/setup-sandbox.js lines 605, 607 appends to a fresh sandbox-realm lines = via lineslines.length = value. This is the exact invariant-violating pattern that GHSA-9qj6-qjgg-37qq commit ca195f0, 2026-05-01 just patched in neutralizeArraySpeciesBatch and...