♻️ Use more reliable unique id generation strategy (#2446)

Author: KATO-Hiro

src/lib/utils/authorship.ts

@@ -157,7 +157,7 @@ const formValidationStrategies = [
  * Contains constraints and shape definitions used across different form strategies
  */
 const createBaseAuthForm = () => ({
-  id: 'error-fallback-form-' + Date.now(), // Note: Use only client-side validation
+  id: 'error-fallback-form-' + crypto.randomUUID(), // Note: Use only client-side validation
   data: { username: '', password: '' },
   constraints: {
     username: { minlength: 3, maxlength: 24, required: true, pattern: '[\\w]*' },