ObjectLoader2::LoadModelBehaviorsComponent: a model without physics gets simple
physics 4247 (with behaviors: controllable 4246 for modelType 0, else simple,
or the registry's id, which the simple physics case leaves to it), and
modelType 0 gets pathfinding control. This replaces the BBB model (LOT 14)
special case, which now loads through the registry like any object (same
bytes as live LOT 14 constructions); the 17 other model LOTs without
physics in the registry now get the simple physics the client makes for them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>