chore(simulation): regenerate msgpack fixtures for protocol v16

Updates all client-side msgpack test fixtures and server test
harnesses to include the new triangle_crisis_events field added
in protocol v16.

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

server/tests/serialization.rs

@@ -36,6 +36,7 @@ fn test_snapshot(tick: u64, entities: Vec<VisibleEntity>) -> ObserverSnapshot {
         examine_result: None,
         player_knowledge: None,
         save_result: None,
+        triangle_crisis_events: vec![],
     }
 }
 
@@ -294,6 +295,7 @@ fn snapshot_v2_fields_roundtrip() {
         examine_result: None,
         player_knowledge: None,
         save_result: None,
+        triangle_crisis_events: vec![],
     };
 
     let bytes = rmp_serde::to_vec_named(&snapshot).expect("serialize");
@@ -348,7 +350,7 @@ fn protocol_version_constant_matches_snapshot() {
     let snapshot = test_snapshot(0, vec![]);
     assert_eq!(snapshot.version, PROTOCOL_VERSION);
     assert_eq!(
-        PROTOCOL_VERSION, 15,
+        PROTOCOL_VERSION, 16,
         "bump this assertion when protocol version changes"
     );
 }
@@ -398,6 +400,7 @@ fn all_facing_direction_variants_roundtrip() {
             examine_result: None,
             player_knowledge: None,
             save_result: None,
+            triangle_crisis_events: vec![],
         };
         let bytes = rmp_serde::to_vec_named(&snapshot).expect("serialize");
         let decoded: ObserverSnapshot = rmp_serde::from_slice(&bytes).expect("deserialize");