continued refactor

core/api/src/event.rs

@@ -0,0 +1,13 @@
+use bytemuck::{Pod, Zeroable};
+
+use crate::utils::impl_to_bytes;
+
+#[repr(C)]
+#[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
+pub struct MineEvent {
+    pub difficulty: u64,
+    pub reward: u64,
+    pub timing: i64,
+}
+
+impl_to_bytes!(MineEvent);