Anatolii Grynchuk
73b506992c
feat: add EF migrations and design-time factory
- Fix EmailEmailTemplateEntityConfiguration -> EmailTemplateEntityConfiguration
- Rename tables to match domain: templates->email_templates,
providers->email_channels, provider_usage->email_channel_usage
- Add NotificationDbContextFactory for design-time migrations tooling
- Add InitialCreate migration: email_templates, email_channels, email_channel_usage
Ref: IT-628
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>