Add QR codes, link expiry, password protection, previews, audit trail and bulk operations

src/models/visit.rs

@@ -1,4 +1,4 @@
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct VisitRecord {