vinihcrosaandClaude Opus 4.8
8a21003c37
Package the physics engine as an internal @ymir/wasm workspace package that runs in Node (worker_threads). Parametrize the Emscripten build (YMIR_WASM_ENVIRONMENT=node, output dir override) so the same C++ core builds for the server. Expose SimulationEngine interface + createSimulationEngine() loader mirroring YmirBindings.cpp. Task: task_01. Tests: 8 passing against the real WASM engine, 100% coverage. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>