Curated highlights for the virtual lab protocol games. For the full change log see CHANGELOG.md.
- Compile-time layout engine. Scene layout now runs at build time and ships as
precomputed positions (
generated/precomputed_layout.ts) rendered inside an exact 16:9 letterbox; the browser no longer recomputes layout per viewport. A pure 2D geometry core, declarative layout config, modular placement strategies with an overflow packer, a phase registry, and severity-graded diagnostics replace the old per-scene fixes. The three long-standing drift scenes (electrophoresis_bench, heat_block_bench, passage_hood_detachment_microscope_view) now converge clean with zero Error diagnostics, and layout quality is judged by a layered review (typed diagnostics, rendered bbox stats, an AI visual-polish reviewer, and human appeals) rather than a single score.