updated gallery

docs/registration-antispam.md

@@ -47,20 +47,23 @@ On repeated requests within cooldown:
 - No additional verification email is queued
 - Generic success message is returned
 
-### 3) Progressive CAPTCHA (Turnstile)
+### 3) Progressive CAPTCHA
 
 Service:
 
-- `app/Services/Security/TurnstileVerifier.php`
+- `app/Services/Security/CaptchaVerifier.php`
+- `app/Services/Security/TurnstileVerifier.php` (legacy compatibility wrapper)
 
-Controller logic (`RegisteredUserController::shouldRequireTurnstile`):
+Controller logic (`RegisteredUserController::shouldRequireCaptcha`):
 
-- Requires Turnstile for suspicious IP activity (attempt threshold)
-- Also requires Turnstile when registration rate-limit state is detected
+- Requires CAPTCHA for suspicious IP activity (attempt threshold)
+- Also requires CAPTCHA when registration rate-limit state is detected
+- Active provider is selected through `forum_bot_protection.captcha.provider`
 
 UI behavior (`resources/views/auth/register.blade.php`):
 
-- Turnstile widget is only rendered when required
+- Provider-specific widget is only rendered when required
+- Turnstile, reCAPTCHA, and hCaptcha are supported
 
 ### 4) Disposable Domain Block
 
@@ -153,9 +156,10 @@ Key settings:
 - `monthly_email_limit`
 - `generic_success_message`
 
-Turnstile config:
+Captcha provider config:
 
-- `config/services.php` under `turnstile`
+- `config/services.php` under `turnstile`, `recaptcha`, and `hcaptcha`
+- `config/forum_bot_protection.php` under `captcha`
 
 Environment examples:
 
@@ -189,7 +193,7 @@ Covered scenarios:
 - Cooldown suppresses extra sends
 - Disposable domains blocked
 - Quota exceeded blocks send and keeps generic success UX
-- Turnstile required on abuse/rate-limit state
+- CAPTCHA required on abuse/rate-limit state
 - Tokens hashed, expire, and are one-time
 - Responses avoid account enumeration
 
@@ -199,4 +203,7 @@ Covered scenarios:
 - Ensure queue workers process the `mail` queue.
 - Monitor `email_send_events` for blocked/sent patterns.
 - Set `REGISTRATION_MONTHLY_EMAIL_LIMIT` based on provider quota.
-- Configure `TURNSTILE_SITE_KEY` and `TURNSTILE_SECRET_KEY` in production.
+- Configure the active CAPTCHA provider keys in production:
+  - Turnstile: `TURNSTILE_SITE_KEY`, `TURNSTILE_SECRET_KEY`
+  - reCAPTCHA: `RECAPTCHA_ENABLED`, `RECAPTCHA_SITE_KEY`, `RECAPTCHA_SECRET_KEY`
+  - hCaptcha: `HCAPTCHA_ENABLED`, `HCAPTCHA_SITE_KEY`, `HCAPTCHA_SECRET_KEY`