feat(shared): derive serde on EntityPos

crates/shared/Cargo.toml

@@ -11,6 +11,6 @@ workspace = true
 [dependencies]
 bytemuck = { version = "1.15", features = ["derive"] }
 fastrand = "2.4.1"
-glam = "0.27"
+glam = { version = "0.27", features = ["serde"] }
 noise = "0.9"
 serde = { version = "1.0", features = ["derive"] }

crates/shared/src/world.rs

@@ -101,7 +101,7 @@ impl ChunkPos {
 }
 
 /// A precision-safe position of an entity in the world.
-#[derive(Copy, Clone, Debug, PartialEq)]
+#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct EntityPos {
     /// The chunk containing the entity; the exact integer anchor of the position.
     pub chunk: ChunkPos,