Enhance verification system with multi-provider support and alt-account detection

- Added support for multiple captcha providers including Google reCAPTCHA (v2 and v3), hCaptcha, and Cloudflare Turnstile.
- Introduced new fields in the verification configuration for selecting captcha providers and enabling alt-account detection.
- Implemented logic to handle verification attempts and flag potential alt accounts based on IP and invite code analysis.
- Updated environment configuration to include necessary keys for captcha providers.
- Enhanced the user interface to allow selection of captcha providers in the verification setup.
- Improved backend handling of verification records to store additional data related to captcha provider usage.

apps/webui/src/messages/de.json

@@ -477,6 +477,15 @@
         "BUTTON": "Button",
         "CAPTCHA": "Captcha (WebUI)"
       },
+      "captchaProvider": "Captcha-Anbieter",
+      "captchaProviderHint": "Anbieter mit fehlenden .env-Keys erscheinen nicht in der Liste. Google-Keys: RECAPTCHA_SITE_KEY / RECAPTCHA_SECRET_KEY.",
+      "captchaProviders": {
+        "MATH": "Mathe-Aufgabe",
+        "RECAPTCHA_V2": "Google reCAPTCHA v2",
+        "RECAPTCHA_V3": "Google reCAPTCHA v3",
+        "HCAPTCHA": "hCaptcha",
+        "TURNSTILE": "Cloudflare Turnstile"
+      },
       "failAction": "Aktion bei Fehlschlag",
       "failActions": {
         "KICK": "Kick",
@@ -486,7 +495,15 @@
       "channelId": "Verifizierungs-Kanal",
       "verifiedRoleId": "Rolle nach Verifizierung",
       "unverifiedRoleId": "Rolle vor Verifizierung",
-      "minAccountAgeDays": "Mindest-Accountalter (Tage)"
+      "minAccountAgeDays": "Mindest-Accountalter (Tage)",
+      "altTitle": "Alt-Account-Erkennung",
+      "altDescription": "Erkennt mögliche Zweitaccounts über gemeinsame Captcha-IP (gesalzen gehasht) und Invite-Cluster. Kein Browser-Fingerprinting.",
+      "altDetectionEnabled": "Alt-Erkennung aktivieren",
+      "altBlockOnMatch": "Bei Treffer blockieren",
+      "altBlockOnMatchHint": "Nutzt die konfigurierte Fehlschlag-Aktion (Kick/Ban/Keine). Aus = nur markieren, trotzdem verifizieren.",
+      "altIpWindowDays": "IP-Fenster (Tage)",
+      "altInviteWindowHours": "Invite-Cluster-Fenster (Stunden)",
+      "altMaxAccountsPerInvite": "Max. Accounts pro Invite (Cluster)"
     },
     "leveling": {
       "title": "Leveling & XP",