…lare Turnstile)

- Add centralized captcha settings/validation methods in `erLhcoreClassUserValidator`:
  `getCaptchaSettings`, `validateAuthCaptcha`, `verifyGoogleRecaptchaV3`,
  `verifyCloudflareTurnstile`, and `postCaptchaVerifyRequest`.
- Replace inline captcha verification in `modules/lhuser/login.php` and
  `modules/lhuser/forgotpassword.php` with shared validation.
- Update auth captcha error handling to use the generic string
  `Captcha validation failed`.
- Extend `system/recaptcha` admin handling with provider support (`google`/`turnstile`),
  new Turnstile fields, and CSRF redirect fix to `system/recaptcha`.
- Update captcha admin template with provider selector and provider-specific sections;
  use shared key labels (`Site key` / `Secret key`) in both provider blocks.
- Update shared captcha rendering template to support:
  Google v3 token flow and Cloudflare Turnstile widget flow.
- Set explicit captcha actions in auth templates:
  `login_action` and `forgot_password_action`.
- Update install defaults (`modules/lhinstall/install.php`, `cli/lib/install.php`)
  to include provider and Turnstile keys in `recaptcha_data`.
- Update translation catalogs (`doc/translation_default/translation_web.ts`,
  `translations/*/translation.ts`, including `translations/en_EN/translation.ts`)
  with the new captcha-related keys used by these changes.

…helperchat into captcha

…tures

- Added a new table `lh_abstract_proactive_chat_invitation_one_time` to store one-time invitations. 🗄️
- Implemented logic to skip invitations that have already been seen by the visitor. 🚫👀
- Enhanced the proactive chat invitation model to handle one-time invitations. 🔄
- Updated the translation system to differentiate between operator and visitor messages. 🌍
- Added cleanup logic for one-time invitations in the chat cleanup process. 🧹
- Modified the installation script to create the new table during setup. ⚙️
- Updated the changelog to reflect the new version 4.81v and database version 348. 📜
- Improved the edit module to handle custom actions for proactive invitations. ✏️
- Enhanced the chat widget to record when a one-time invitation is shown. 💬
- Updated translation handling in visitor messages to ensure proper context. 📢

These changes aim to improve user experience by ensuring that one-time invitations are not shown repeatedly, thus enhancing the chat interaction flow. 🚀

…ebug UI

- Introduced a reset button for visitor invitations in the debug panel to clear invitation data. 🔄
- Enhanced the debug output by including a new template for better state visualization. 🖥️
- Updated the backend to handle the reset action and clean up related invitation data in the database. 🗑️
- Improved the structure of the debug invitation module to support new parameters. 📊