Fix: Skip non-podcast API calls in podcast-only mode

- AlertsBadge: Skip agent alerts fetch in podcast mode
- UserBadge: Skip system status fetch in podcast mode
- SystemStatusIndicator: Skip monitoring stats in podcast mode

This prevents 404 errors when frontend calls endpoints that don't exist in podcast-only demo mode.

frontend/src/components/ContentPlanningDashboard/components/SystemStatusIndicator.tsx

@@ -21,6 +21,7 @@ import {
   Avatar
 } from '@mui/material';
 import { apiClient } from '../../../api/client';
+import { isPodcastOnlyDemoMode } from '../../../utils/demoMode';
 import {
   CheckCircle as HealthyIcon,
   Warning as WarningIcon,
@@ -90,6 +91,19 @@ const SystemStatusIndicator: React.FC<SystemStatusIndicatorProps> = ({ className
   const [, setCachePerf] = useState<{ hits: number; misses: number; hit_rate: number } | null>(null);
 
   const fetchStatus = async () => {
+    // Skip system status checks in podcast-only mode (endpoint not available)
+    if (isPodcastOnlyDemoMode()) {
+      setStatusData({
+        status: 'unknown',
+        icon: '⚪',
+        recent_requests: 0,
+        recent_errors: 0,
+        error_rate: 0,
+        timestamp: new Date().toISOString()
+      });
+      return;
+    }
+
     setLoading(true);
     setError(null);
     

frontend/src/components/shared/AlertsBadge.tsx

@@ -5,6 +5,7 @@ import { Warning as WarningIcon, Error as ErrorIcon, Info as InfoIcon, CheckCirc
 import { billingService } from '../../services/billingService';
 import { useAuth } from '@clerk/clerk-react';
 import { getTasksNeedingIntervention, TaskNeedingIntervention } from '../../api/schedulerDashboard';
+import { isPodcastOnlyDemoMode } from '../../utils/demoMode';
 import {
   apiClient,
   isBackendCooldownActive,
@@ -106,6 +107,12 @@ const AlertsBadge: React.FC<AlertsBadgeProps> = ({ colorMode = 'light' }) => {
   const fetchAlerts = async () => {
     if (!userId || isPollingRef.current) return;
 
+    // Skip alerts fetching in podcast-only mode (endpoints not available)
+    if (isPodcastOnlyDemoMode()) {
+      setLoading(false);
+      return;
+    }
+
     if (isBackendCooldownActive()) {
       logBackendCooldownSkipOnce('AlertsBadge');
       return;

frontend/src/components/shared/UserBadge.tsx

@@ -4,6 +4,7 @@ import { useUser, useClerk } from '@clerk/clerk-react';
 import { useSubscription } from '../../contexts/SubscriptionContext';
 import SystemStatusIndicator from '../ContentPlanningDashboard/components/SystemStatusIndicator';
 import UsageDashboard from './UsageDashboard';
+import { isPodcastOnlyDemoMode } from '../../utils/demoMode';
 import {
   apiClient,
   isBackendCooldownActive,
@@ -30,6 +31,12 @@ const UserBadge: React.FC<UserBadgeProps> = ({ colorMode = 'light' }) => {
 
   // Fetch system status for status bulb
   useEffect(() => {
+    // Skip system status checks in podcast-only mode (endpoint not available)
+    if (isPodcastOnlyDemoMode()) {
+      setSystemStatus('unknown');
+      return;
+    }
+
     const fetchSystemStatus = async () => {
       if (isBackendCooldownActive()) {
         logBackendCooldownSkipOnce('UserBadge');