add core models

como_domain/src/item/mod.rs

@@ -0,0 +1,21 @@
+pub mod requests;
+pub mod responses;
+
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+#[derive(Debug, Deserialize, Serialize)]
+pub enum ItemState {
+    Created,
+    Done,
+    Archived,
+    Deleted,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct ItemDto {
+    pub id: Uuid,
+    pub title: String,
+    pub description: Option<String>,
+    pub state: ItemState,
+}