Asking whether an entity has components does not write to the registry, and
entt's all_of is const. Callers that only read were forced to take the admin --
and through it the whole simulation -- by non-const reference to ask; the
selection bounds helpers now say what they mean.
Widening a member to const breaks nothing: every existing caller still binds.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01JcReq7hVk4KUPhTDKWAG7K
Malte Langkabel
256c4b5492