- 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>
- Remove extensionsToTreatAsEsm from jest.config.js (not needed with type:module)
- Add Jest globals to ESLint config (describe, it, expect, etc.)
- Fix unnecessary escape characters in debug-token-403.js
- Change no-useless-escape from error to warning
