fix(simulation): Clippy cleanup and CI enforcement (#635)

Fix all Clippy warnings across the server codebase (2411 insertions, 1341
deletions). Raise type-complexity-threshold to 750 and too-many-arguments
to 12 in .clippy.toml for idiomatic Bevy ECS system signatures. The server
now passes `cargo clippy -- --deny warnings` cleanly.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/src/perception/observer/mod.rs

@@ -9,7 +9,6 @@
 use bevy_ecs::prelude::*;
 use std::collections::BTreeSet;
 
-
 use crate::bridge::types::*;
 use crate::knowledge::graph::filter_by_access;
 use crate::knowledge::types::{AccessRule, KnowledgeState};
@@ -28,11 +27,11 @@ use crate::simulation::monologue::{MonologueBuffer, SprintAnomalyQueue};
 use crate::simulation::movement::{PlayerCharacter, TilePosition, WalkabilityMap};
 use crate::simulation::poi::PointOfInterest;
 use crate::simulation::rng::SimRng;
-use crate::simulation::triangle::TriangleCrisisEventQueue;
 use crate::simulation::sound::SoundEventQueue;
 use crate::simulation::stance::Stance;
 use crate::simulation::ticker::{TickerPool, LAST_SHIFT_ZONE_ID};
 use crate::simulation::time::SimulationTime;
+use crate::simulation::triangle::TriangleCrisisEventQueue;
 use crate::simulation::zone::ZoneMap;
 
 /// Compute visibility geometry using the active perception mode.
@@ -154,12 +153,15 @@ pub fn compute_observer_snapshot(
         .unwrap_or_default();
 
     // Resolve observer's StableId for component-level access control (#139, D-010)
-    let observer_stable_id = registry
-        .to_stable(observer_entity)
-        .unwrap_or(StableId(0));
+    let observer_stable_id = registry.to_stable(observer_entity).unwrap_or(StableId(0));
 
-    let (mut entities, visible_ids, blocked_entities) =
-        filter_visible_entities(&geometry, &registry, observer_kg, observer_stable_id, &all_entities);
+    let (mut entities, visible_ids, blocked_entities) = filter_visible_entities(
+        &geometry,
+        &registry,
+        observer_kg,
+        observer_stable_id,
+        &all_entities,
+    );
 
     collect_remembered_entities(
         observer_kg,
@@ -210,13 +212,14 @@ pub fn compute_observer_snapshot(
 
     let current_monologue = monologue_buffer.take();
     let dialogue_response = dialogue_response_opt.as_mut().and_then(|buf| buf.take());
-    let examine_result = examine_result_buffer_opt.as_mut().and_then(|buf| buf.take()).map(
-        |evt| crate::bridge::types::ExamineResultWire {
+    let examine_result = examine_result_buffer_opt
+        .as_mut()
+        .and_then(|buf| buf.take())
+        .map(|evt| crate::bridge::types::ExamineResultWire {
             entity_id: evt.target_entity_id,
             text: evt.text,
             confidence: crate::knowledge::types::KnowledgeConfidence::KnowsDetails,
-        },
-    );
+        });
     let scan_events = scan_event_buffer_opt
         .as_mut()
         .map(|buf| buf.take())
@@ -438,9 +441,7 @@ pub fn compute_observer_snapshot(
     };
 
     // Drain sim errors collected this tick (#85)
-    let sim_errors = error_buffer
-        .map(|mut buf| buf.drain())
-        .unwrap_or_default();
+    let sim_errors = error_buffer.map(|mut buf| buf.drain()).unwrap_or_default();
 
     // News ticker (#591): populate when player is in The Last Shift zone.
     let player_zone = zone_map
@@ -472,9 +473,10 @@ pub fn compute_observer_snapshot(
         conversation_events,
         conversation_ended,
         follow_state,
-        character_pressure: pressure_query.iter().next().map(|p| {
-            crate::simulation::pressure::CharacterPressureWire::from(p)
-        }),
+        character_pressure: pressure_query
+            .iter()
+            .next()
+            .map(crate::simulation::pressure::CharacterPressureWire::from),
         sound_events,
         rng_seed: sim_rng.as_deref().map(|r| r.seed()),
         poi_list,