- Add OAuthCredential model for storing Google/Microsoft OAuth tokens
- Add email provider auto-detection endpoint (Gmail, Outlook, Yahoo, etc.)
- Add EmailConfigWizard frontend component with step-by-step setup
- Add OAuth flow endpoints for Google and Microsoft XOAUTH2
- Update production settings to make AWS, Sentry, Mailgun optional
- Update Traefik config for wildcard subdomain routing
- Add logo resize utility script
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
