feat(items): create the item structure

src/models/items.rs

@@ -0,0 +1,9 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct Item {
+    pub id: String,           // Unique ID for the item
+    pub name: String,         // Item name
+    pub description: String,  // Short description of the item
+    pub tags: Vec<(String, String)>, // Key-value tags (e.g., "type" -> "software")
+}