feat: implement advanced analytics for mobile admin dashboard

This commit includes:
- Backend EventAnalyticsService and Controller
- API endpoint for event analytics
- Frontend EventAnalyticsPage with custom bar charts and top contributor lists
- Analytics shortcut on the dashboard
- Feature-lock upsell UI for non-premium users

resources/js/admin/mobile/DashboardPage.tsx

@@ -2,7 +2,7 @@ import React from 'react';
 import { useLocation, useNavigate } from 'react-router-dom';
 import { useTranslation } from 'react-i18next';
 import { useQuery } from '@tanstack/react-query';
-import { Bell, CheckCircle2, Download, Image as ImageIcon, ListTodo, MessageCircle, QrCode, Settings, ShieldCheck, Smartphone, Users, Sparkles } from 'lucide-react';
+import { Bell, CheckCircle2, Download, Image as ImageIcon, ListTodo, MessageCircle, QrCode, Settings, ShieldCheck, Smartphone, Users, Sparkles, TrendingUp } from 'lucide-react';
 import { YStack, XStack } from '@tamagui/stacks';
 import { SizableText as Text } from '@tamagui/text';
 import { Pressable } from '@tamagui/react-native-web-lite';
@@ -462,6 +462,7 @@ export default function MobileDashboardPage() {
         onPrint={() => activeEvent?.slug && navigate(adminPath(`/mobile/events/${activeEvent.slug}/qr`))}
         onInvites={() => activeEvent?.slug && navigate(adminPath(`/mobile/events/${activeEvent.slug}/members`))}
         onSettings={() => activeEvent?.slug && navigate(adminPath(`/mobile/events/${activeEvent.slug}`))}
+        onAnalytics={() => activeEvent?.slug && navigate(adminPath(`/mobile/events/${activeEvent.slug}/analytics`))}
       />
 
       <KpiStrip
@@ -1112,12 +1113,14 @@ function SecondaryGrid({
   onPrint,
   onInvites,
   onSettings,
+  onAnalytics,
 }: {
   event: TenantEvent | null;
   onGuests: () => void;
   onPrint: () => void;
   onInvites: () => void;
   onSettings: () => void;
+  onAnalytics: () => void;
 }) {
   const { t } = useTranslation('management');
   const { textStrong, muted, border, surface, accentSoft, primary } = useAdminTheme();
@@ -1130,6 +1133,12 @@ function SecondaryGrid({
       color: ADMIN_ACTION_COLORS.guests,
       action: onGuests,
     },
+    {
+      icon: TrendingUp,
+      label: t('mobileDashboard.shortcutAnalytics', 'Analytics'),
+      color: ADMIN_ACTION_COLORS.analytics,
+      action: onAnalytics,
+    },
     {
       icon: QrCode,
       label: t('mobileDashboard.shortcutPrints', 'Print & poster downloads'),