Enhance bot and WebUI functionality with new features and environment updates

- Added support for new environment variables in `.env.example` for public site and legal operator information.
- Integrated core commands into the bot's command structure for improved functionality.
- Implemented a new `publishBotStatus` function to update bot status in Redis, enhancing monitoring capabilities.
- Updated the landing page to include features, invite links, and support server access, improving user experience.
- Enhanced localization with new keys for core commands and landing page elements in both English and German.
- Improved error handling and logging for bot presence updates and status publishing.

apps/webui/src/components/site/legal-shell.tsx

@@ -0,0 +1,39 @@
+import Link from 'next/link';
+import type { ReactNode } from 'react';
+import { SiteShell } from '@/components/site/site-shell';
+import { getLocale, t } from '@/lib/i18n';
+
+export async function LegalShell({
+  title,
+  children
+}: {
+  title: string;
+  children: ReactNode;
+}) {
+  const locale = await getLocale();
+
+  return (
+    <SiteShell>
+      <div className="mx-auto grid w-full max-w-[1200px] gap-8 px-6 py-12 lg:grid-cols-[220px_1fr]">
+        <aside className="space-y-2 text-sm">
+          <p className="px-2 text-xs font-semibold uppercase tracking-wider text-muted-foreground">
+            {t(locale, 'legal.navTitle')}
+          </p>
+          <Link href="/impressum" className="block rounded-md px-2 py-1.5 hover:bg-accent">
+            {t(locale, 'legal.impressum.title')}
+          </Link>
+          <Link href="/privacy" className="block rounded-md px-2 py-1.5 hover:bg-accent">
+            {t(locale, 'legal.privacy.title')}
+          </Link>
+          <Link href="/terms" className="block rounded-md px-2 py-1.5 hover:bg-accent">
+            {t(locale, 'legal.terms.title')}
+          </Link>
+        </aside>
+        <article className="space-y-6">
+          <h1 className="text-3xl font-semibold">{title}</h1>
+          {children}
+        </article>
+      </div>
+    </SiteShell>
+  );
+}