style(simulation): cargo fmt

Formatting normalization caught by pre-push hook.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/perception/observer/mod.rs

@@ -654,10 +654,7 @@ fn collect_remembered_entities(
 /// ObjectType + proximity. Phase 2 (here) reads the observer's KnowledgeGraph
 /// to filter, augment, and relabel. This separation keeps D-010 principle 1
 /// (info boundary) clean — simulation doesn't know what the observer knows.
-fn apply_phase2_verb_filter(
-    interactions: &mut [NearbyInteraction],
-    observer_kg: &KnowledgeGraph,
-) {
+fn apply_phase2_verb_filter(interactions: &mut [NearbyInteraction], observer_kg: &KnowledgeGraph) {
     for interaction in interactions.iter_mut() {
         let stable_id = StableId(interaction.entity_id);
         let knowledge = observer_kg.entity_knowledge(&stable_id);