Fix iOS Safari auth loops and simplify admin dashboard

- Add session check throttling in useAuth to prevent iOS Safari authentication loops
- Simplify admin dashboard by removing complex system metrics and stats
- Remove system-metrics utility and streamline stats API endpoint
- Update admin interface to focus on core user and role management

server/api/admin/stats.get.ts

@@ -1,8 +1,8 @@
 export default defineEventHandler(async (event) => {
-  console.log('📊 Admin stats requested at:', new Date().toISOString());
+  console.log('📊 Simple admin stats requested at:', new Date().toISOString());
   
   try {
-    // Check if user is admin (middleware should handle this, but double-check)
+    // Check if user is admin
     const sessionManager = createSessionManager();
     const cookieHeader = getHeader(event, 'cookie');
     const session = sessionManager.getSession(cookieHeader);
@@ -17,78 +17,17 @@ export default defineEventHandler(async (event) => {
     
     console.log('✅ Admin access verified for user:', session.user.email);
     
-    // Get real system metrics
-    const { getSystemMetrics, getSystemHealthStatus, formatBytes } = await import('~/server/utils/system-metrics');
-    const systemMetrics = await getSystemMetrics();
-    const systemHealth = getSystemHealthStatus(systemMetrics);
-    
-    // Build comprehensive stats with real data
+    // Return simple user-focused stats without system metrics
     const stats = {
-      // Real system metrics
-      totalUsers: 156, // TODO: Get from Keycloak API
-      activeUsers: 45, // TODO: Get from session store  
-      totalSessions: 67, // TODO: Get from session store
-      systemHealth,
-      lastBackup: new Date().toISOString(),
-      diskUsage: `${systemMetrics.disk.usagePercent}%`,
-      memoryUsage: `${systemMetrics.memory.usagePercent}%`,
+      // Simple user count (mock data for now - would come from Keycloak API)
+      userCount: 25,
       
-      // Enhanced system metrics with real data
-      systemMetrics: {
-        cpu: systemMetrics.cpu.usage,
-        memory: systemMetrics.memory.usagePercent,
-        disk: systemMetrics.disk.usagePercent,
-        uptime: systemMetrics.uptime,
-        processes: systemMetrics.processes.total,
-        cpuCores: systemMetrics.cpu.cores,
-        cpuModel: systemMetrics.cpu.model,
-        memoryTotal: formatBytes(systemMetrics.memory.total),
-        memoryUsed: formatBytes(systemMetrics.memory.used),
-        diskTotal: formatBytes(systemMetrics.disk.total),
-        diskUsed: formatBytes(systemMetrics.disk.used)
-      },
-      
-      // Mock data for features not yet implemented
-      recentActivity: [
-        { 
-          action: 'User login', 
-          user: 'john@example.com', 
-          timestamp: new Date(Date.now() - 2 * 60 * 60 * 1000).toISOString(),
-          type: 'info'
-        },
-        { 
-          action: 'Password reset', 
-          user: 'jane@example.com', 
-          timestamp: new Date(Date.now() - 4 * 60 * 60 * 1000).toISOString(),
-          type: 'warning'
-        },
-        { 
-          action: 'User created', 
-          user: 'admin@monacousa.org', 
-          timestamp: new Date(Date.now() - 6 * 60 * 60 * 1000).toISOString(),
-          type: 'success'
-        }
-      ],
-      
-      securityAlerts: [
-        {
-          id: 1,
-          title: 'Failed Login Attempts',
-          description: '3 failed login attempts detected',
-          severity: 'medium',
-          timestamp: new Date(Date.now() - 1 * 60 * 60 * 1000).toISOString()
-        },
-        {
-          id: 2,
-          title: 'System Update Available',
-          description: 'Security update available for Keycloak',
-          severity: 'low',
-          timestamp: new Date(Date.now() - 12 * 60 * 60 * 1000).toISOString()
-        }
-      ]
+      // Basic portal health without system metrics
+      portalStatus: 'online',
+      lastUpdate: new Date().toISOString()
     };
     
-    console.log('✅ Admin stats retrieved successfully with real system metrics');
+    console.log('✅ Simple admin stats retrieved successfully');
     return stats;
     
   } catch (error: any) {
@@ -100,7 +39,7 @@ export default defineEventHandler(async (event) => {
     
     throw createError({
       statusCode: 500,
-      statusMessage: 'Failed to retrieve system statistics'
+      statusMessage: 'Failed to retrieve admin statistics'
     });
   }
 });