Merge remote-tracking branch 'origin/main' into ci

# Conflicts:
#	client/tests/fixtures/msgpack/snapshot_boundary_tick_0.msgpack
#	client/tests/fixtures/msgpack/snapshot_boundary_tick_127.msgpack
#	client/tests/fixtures/msgpack/snapshot_boundary_tick_2b31m1.msgpack
#	client/tests/fixtures/msgpack/snapshot_boundary_tick_2b32.msgpack
#	client/tests/fixtures/msgpack/snapshot_boundary_tick_32767.msgpack
#	client/tests/fixtures/msgpack/snapshot_empty.msgpack
#	client/tests/fixtures/msgpack/snapshot_multi_entity.msgpack
#	client/tests/fixtures/msgpack/snapshot_one_npc.msgpack
#	client/tests/fixtures/msgpack/snapshot_player.msgpack
#	client/tests/fixtures/msgpack/snapshot_v2_full.msgpack
#	server/src/perception/observer/mod.rs

server/tests/serialization.rs

@@ -35,6 +35,7 @@ fn test_snapshot(tick: u64, entities: Vec<VisibleEntity>) -> ObserverSnapshot {
         poi_list: vec![],
         examine_result: None,
         player_knowledge: None,
+        save_result: None,
     }
 }
 
@@ -119,6 +120,12 @@ fn all_player_action_variants_roundtrip() {
             target_entity_id: 42,
             response_id: "kael-davan_d_001".to_string(),
         },
+        PlayerAction::SaveGame {
+            path: "/tmp/test.msgpack".to_string(),
+        },
+        PlayerAction::LoadGame {
+            path: "/tmp/test.msgpack".to_string(),
+        },
     ];
 
     for action in actions {
@@ -286,6 +293,7 @@ fn snapshot_v2_fields_roundtrip() {
         poi_list: vec![],
         examine_result: None,
         player_knowledge: None,
+        save_result: None,
     };
 
     let bytes = rmp_serde::to_vec_named(&snapshot).expect("serialize");
@@ -340,7 +348,7 @@ fn protocol_version_constant_matches_snapshot() {
     let snapshot = test_snapshot(0, vec![]);
     assert_eq!(snapshot.version, PROTOCOL_VERSION);
     assert_eq!(
-        PROTOCOL_VERSION, 14,
+        PROTOCOL_VERSION, 15,
         "bump this assertion when protocol version changes"
     );
 }
@@ -389,6 +397,7 @@ fn all_facing_direction_variants_roundtrip() {
             poi_list: vec![],
             examine_result: None,
             player_knowledge: None,
+            save_result: None,
         };
         let bytes = rmp_serde::to_vec_named(&snapshot).expect("serialize");
         let decoded: ObserverSnapshot = rmp_serde::from_slice(&bytes).expect("deserialize");
@@ -1432,7 +1441,7 @@ fn serde_default_fields_fill_in_when_missing_from_wire() {
     let decoded: ObserverSnapshot =
         serde_json::from_value(minimal_json).expect("minimal JSON must deserialize");
 
-    // Version matches what was in the wire (13, simulating older server)
+    // Version matches what was in the wire
     assert_eq!(decoded.version, 13);
     assert_eq!(decoded.tick, 42);
     assert_eq!(decoded.entities.len(), 1);