Introduced support for MailerSend as an email provider alongside SMTP, with configuration options in settings. Added Jinja2-based multi-language email templates for verification emails, and refactored the email sending logic to use these templates and support language selection based on user country code. Updated related services and API endpoints to pass country code and handle new response formats. Added dependencies for Jinja2 and MailerSend.
* chore(deps): add pyotp
* feat(auth): implement TOTP verification
feat(auth): implement TOTP verification and email verification services
- Added TOTP keys management with a new database model `TotpKeys`.
- Introduced `EmailVerification` and `LoginSession` models for email verification.
- Created `verification_service` to handle email verification logic and TOTP processes.
- Updated user response models to include session verification methods.
- Implemented routes for TOTP creation, verification, and fallback to email verification.
- Enhanced login session management to support new location checks and verification methods.
- Added migration script to create `totp_keys` table in the database.
* feat(config): update config example
* docs(totp): complete creating TOTP flow
* refactor(totp): resolve review
* feat(api): forbid unverified request
* fix(totp): trace session by token id to avoid other sessions are forbidden
* chore(linter): make pyright happy
* fix(totp): only mark sessions with a specified token id
