email/ module = its own package (like any module)
├── *.py the module's regular files
├── templates/ emails: invite · reset · test · notification (RU/EN)
└── jobs.py SAQ tasks for background sending (as in other modules)
Local development
Mailpit — a local SMTP trap server in
docker-compose dev: it catches every email, shows them in
a web UI, and never sends anything outbound. We use it over MailHog
(long abandoned; Mailpit is its living successor, same purpose).