- labs-validate-dev.yml: the Pyodide/WASM export smoke test imported the
pre-taxonomy-refactor path `from mlsysim.core.engine import Engine`. The
refactor moved Engine to mlsysim/engine/engine.py (exported at the package
top level). Use the canonical public import `from mlsysim import Engine`.
Fixes the "ModuleNotFoundError: No module named 'mlsysim.core.engine'" failure.
- LIVE_INTERVIEWER_PLAN.md: "pre-selects" -> "preselects" (codespell dictionary).