♻️ Refactor email logic to allow re-using util functions for testing and development (#663)

backend/app/api/routes/utils.py

@@ -4,7 +4,7 @@ from pydantic.networks import EmailStr
 from app.api.deps import get_current_active_superuser
 from app.core.celery_app import celery_app
 from app.models import Message
-from app.utils import send_test_email
+from app.utils import generate_test_email, send_email
 
 router = APIRouter()
 
@@ -31,5 +31,10 @@ def test_email(email_to: EmailStr) -> Message:
     """
     Test emails.
     """
-    send_test_email(email_to=email_to)
+    email_data = generate_test_email(email_to=email_to)
+    send_email(
+        email_to=email_to,
+        subject=email_data.subject,
+        html_content=email_data.html_content,
+    )
     return Message(message="Test email sent")