feat: add native compact impl for alloy TxKind (#7686)

crates/storage/codecs/src/alloy/log.rs

@@ -1,3 +1,5 @@
+//! Native Compact codec impl for primitive alloy log types.
+
 use crate::Compact;
 use alloy_primitives::{Address, Bytes, Log, LogData};
 use bytes::BufMut;

crates/storage/codecs/src/alloy/mod.rs

@@ -1,2 +1,3 @@
 mod access_list;
 mod log;
+mod txkind;

crates/storage/codecs/src/alloy/txkind.rs

@@ -0,0 +1,31 @@
+//! Native Compact codec impl for primitive alloy [TxKind].
+
+use crate::Compact;
+use alloy_primitives::{Address, TxKind};
+
+impl Compact for TxKind {
+    fn to_compact<B>(self, buf: &mut B) -> usize
+    where
+        B: bytes::BufMut + AsMut<[u8]>,
+    {
+        match self {
+            TxKind::Create => 0,
+            TxKind::Call(address) => {
+                address.to_compact(buf);
+                1
+            }
+        }
+    }
+    fn from_compact(buf: &[u8], identifier: usize) -> (Self, &[u8]) {
+        match identifier {
+            0 => (TxKind::Create, buf),
+            1 => {
+                let (addr, buf) = Address::from_compact(buf, buf.len());
+                (TxKind::Call(addr), buf)
+            }
+            _ => {
+                unreachable!("Junk data in database: unknown TransactionKind variant",)
+            }
+        }
+    }
+}