Update register.rs

src/api/register.rs

@@ -20,7 +20,7 @@ pub async fn register_handler(
         });
     }
 
-    if payload.username.len() < 3
+    if payload.username.len() < 2
         || payload.username.len() > state.config.limits.max_username_length
     {
         return Json(model::AuthResponse {