- Add HasPluginConfig trait and PluginController base class
- Integrate guest_comm_config hook in CommController for plugin frontend config injection
- Add user creation functionality to UserService and fix null value handling
- Enhance AbstractPlugin.getConfig() with key parameter support
- Multiple service layer optimizations and architecture improvements
- Implement reCAPTCHA v3 with score-based validation
- Add Cloudflare Turnstile as captcha alternative
- Create reusable CaptchaService for unified validation
- Support switching between recaptcha, recaptcha-v3, and turnstile
- Maintain backward compatibility with existing configurations