Document authoritative world aim lowering

docs/world-state-lowering.md

@@ -102,6 +102,11 @@ state:
   world content;
 - `ambientLightColor` and `ambientLightIntensity` define portable flat ambient
   illumination when the selected camera rig supports it;
+- `lookCommand` accepts a controlled entity id and a unit `directionX`,
+  `directionY`, `directionZ` vector. The provider remains the owner of the
+  accepted look direction; runtimes only lower local pointing input into this
+  intent. `lookSensitivityRadians` optionally maps one native pointer-delta
+  unit to yaw radians, including the provider-authored axis sign;
 - `subjectVisible` controls presentation of `playerEntityId` without deleting
   that authoritative entity from the world view;
 - `movementEnabled` controls whether the runtime emits movement intents;
@@ -119,6 +124,15 @@ scene-global render settings must restore the previous environment when its
 world disconnects, its rig changes, or the lowering component is disabled or
 destroyed.
 
+An optional `aim.presentation` child binds presentation to that authoritative
+body direction without duplicating it. `controlledEntityId` identifies the
+body, `convergenceTargetEntityId` optionally names the selected body whose
+distance sets convergence, and `minimumConvergenceDistance` supplies the lower
+bound when there is no farther target. `viewDotRole` and `viewDotRadius`
+describe the portable marker. A lowerer must not steer weapons, tractors, or
+the body transform from the marker; it renders the direction committed by the
+provider's body publication.
+
 The descriptor carries buffer locations, semantic columns, dirty ranges, and
 render groups. CultMesh selects the buffer route: shared memory for co-located
 runtimes, a native stream for remote runtimes, or another advertised backend.