fix(cat-gateway): Fix cardano/assets endpoint.

catalyst-gateway/bin/src/db/types/slot.rs

@@ -7,6 +7,8 @@ use scylla::_macro_internal::{
     SerializeValue, TypeCheckError, WrittenCellProof,
 };
 
+use crate::service::common::types::cardano::slot_no::SlotNo;
+
 /// A `Slot` wrapper that can be stored to and load from a database.\
 #[allow(clippy::module_name_repetitions)]
 #[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
@@ -42,6 +44,12 @@ impl From<DbSlot> for BigInt {
     }
 }
 
+impl From<SlotNo> for DbSlot {
+    fn from(value: SlotNo) -> Self {
+        Self(value.into())
+    }
+}
+
 impl SerializeValue for DbSlot {
     fn serialize<'b>(
         &self, typ: &ColumnType, writer: CellWriter<'b>,