Implement verification panel synchronization with BullMQ integration

- Introduced a new `verificationPanelSync` job to handle posting and updating the verification panel in Discord channels via BullMQ.
- Enhanced the `syncVerificationPanel` function to manage panel updates and error handling, ensuring proper feedback for synchronization issues.
- Updated the WebUI to support verification panel management, including improved error messages for timeout and posting failures.
- Added localization entries for new error messages related to verification panel synchronization in both English and German.
- Refactored existing verification logic to accommodate the new synchronization process, improving overall functionality and user experience.

apps/webui/src/messages/en.json

@@ -15,6 +15,7 @@
     "unsavedChanges": "You have unsaved changes",
     "saveSuccess": "Changes saved",
     "saveError": "Could not save changes",
+    "networkError": "Network error",
     "back": "Back",
     "comingSoon": "Coming soon",
     "close": "Close",
@@ -562,7 +563,7 @@
     },
     "verification": {
       "title": "Verification",
-      "description": "Mode, roles and requirements for member verification.",
+      "description": "Mode, roles and requirements. Saving (enabled, with channel and role) posts or updates the verification panel in the selected channel.",
       "enabledLabel": "Verification enabled",
       "mode": "Mode",
       "modes": {
@@ -594,7 +595,11 @@
       "altBlockOnMatchHint": "Uses the configured fail action (Kick/Ban/None). Off = flag only, still verify.",
       "altIpWindowDays": "IP window (days)",
       "altInviteWindowHours": "Invite cluster window (hours)",
-      "altMaxAccountsPerInvite": "Max accounts per invite (cluster)"
+      "altMaxAccountsPerInvite": "Max accounts per invite (cluster)",
+      "errors": {
+        "panelTimeout": "The bot did not confirm the verification panel in time. It may still be posting — check the channel and bot permissions, then save again.",
+        "panelNotPosted": "The verification panel could not be created in the Discord channel. Check bot permissions (View Channel, Send Messages, Embed Links)."
+      }
     },
     "leveling": {
       "title": "Leveling & XP",