- Remove unused variables and imports across codebase
- Use empty catch blocks where error object not needed
- Remove unused fs, path imports from apply-grand-prize-migration.js
- Remove unused OAuth2Client from oauth.controller.js
- Update dependencies to latest patch versions
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Add newsletter database table migration
- Create newsletter controller with subscribe/unsubscribe endpoints
- Add newsletter routes and validation
- Implement newsletter service with email validation
- Add setup documentation and migration scripts
- Include test page for newsletter functionality
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
