921990a043
Add complete email service infrastructure with Mock and SMTP implementations. Changes: - Created EmailMessage domain model for email data - Added IEmailService interface for email sending - Implemented MockEmailService for development/testing (logs emails) - Implemented SmtpEmailService for production SMTP sending - Added IEmailTemplateService interface for email templates - Implemented EmailTemplateService with HTML templates for verification, password reset, and invitation emails - Registered email services in DependencyInjection with provider selection - Added email configuration to appsettings.Development.json (Mock provider by default) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>