fix(structure): Unify structure even further

readme.hints.md

@@ -609,4 +609,27 @@ email.to.forEach(recipient => {
 
 // Convert back to options format
 const optionsAgain = email.toEmailOptions();
+```
+
+### Template Email Creation (2025-05-27)
+The Email class now supports template creation without recipients:
+- IEmailOptions 'to' field is now optional (for templates)
+- Email constructor allows creation without recipients
+- Recipients are added later when the email is actually sent
+
+```typescript
+// Template creation (no recipients)
+const emailOptions: IEmailOptions = {
+  from: 'noreply@example.com',
+  subject: 'Welcome {{name}}',
+  text: 'Hello {{name}}!',
+  // 'to' is omitted for templates
+  variables: { name: 'User' }
+};
+
+const templateEmail = new Email(emailOptions);
+// templateEmail.to is an empty array []
+
+// Later, when sending:
+templateEmail.to = ['recipient@example.com'];
 ```