Code-review follow-up to 003c502:
1. Test 3 (OnRemove_StopsScriptsAndEmitters) now wires the runner into
the real ParticleHookSink instead of a RecordingSink, registers a
persistent EmitterDesc, lets the CreateParticleHook actually spawn an
emitter, then asserts the sink killed it after OnRemove. Previously
the test only verified runner-side state — sink.StopAllForEntity was
never observably exercised, so a regression dropping that call would
have passed silently.
2. Removed unused `using System.Numerics` from EntityScriptActivator.cs.
No production code changes. Tests 1 and 2 unchanged.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
New ~50-line orchestrator that fires Setup.DefaultScript through the
already-shipped PhysicsScriptRunner on entity spawn and stops scripts +
live emitters on despawn. Resolver delegate avoids DatCollection coupling
so the class is fully unit-testable with stubs.
Three xUnit tests cover the three branches: fire-with-script,
no-op-without-script, stop-on-remove. No wiring into the live spawn path
yet -- that lands in the next commit.
Spec: docs/superpowers/specs/2026-05-12-phase-c1.5a-portals-design.md
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
