refactor(server): apply rustfmt and clippy suggestions

Formatting pass across simulation, perception, knowledge, NPC, and
test modules. Includes two clippy fixes in monologue.rs (.values()
instead of for (_, v) pattern).

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

server/src/simulation/movement.rs

@@ -261,7 +261,12 @@ pub struct MoveIntent {
 pub fn validate_movement(
     mut commands: Commands,
     walkability: Option<Res<WalkabilityMap>>,
-    mut movers: Query<(Entity, &MoveIntent, &mut TilePosition, Option<&TilePresence>)>,
+    mut movers: Query<(
+        Entity,
+        &MoveIntent,
+        &mut TilePosition,
+        Option<&TilePresence>,
+    )>,
     stationary: Query<(Entity, &TilePosition, Option<&TilePresence>), Without<MoveIntent>>,
 ) {
     let Some(map) = walkability else {
@@ -290,12 +295,17 @@ pub fn validate_movement(
         } else if occupied.contains_key(&slot) {
             tracing::trace!(
                 "Entity {:?} blocked by entity at {:?} (layer {:?})",
-                entity, target, layer
+                entity,
+                target,
+                layer
             );
         } else {
             tracing::trace!(
                 "Entity {:?} moving from {:?} to {:?} (layer {:?})",
-                entity, *position, target, layer
+                entity,
+                *position,
+                target,
+                layer
             );
             // Free old layer slot, claim new one
             occupied.remove(&(*position, layer));