feat: Add comprehensive error boundaries for graceful error handling

Implemented React error boundaries to catch and handle errors gracefully:

**Core Error Handling Components:**
- Created ErrorBoundary class component with error catching and logging
- Created specialized fallback UIs (MinimalErrorFallback, DataErrorFallback,
  ComponentErrorFallback, FormErrorFallback, ChartErrorFallback, ImageErrorFallback)
- Added withErrorBoundary HOC for easy component wrapping
- Created errorLogger service with Sentry integration placeholder

**Error Logging Service (errorLogger.ts):**
- Centralized error logging with severity levels (FATAL, ERROR, WARNING, INFO, DEBUG)
- Context enrichment (URL, userAgent, timestamp, environment)
- Local storage of last 10 errors in sessionStorage for debugging
- User context management (setUser, clearUser)
- Breadcrumb support for debugging trails

**App Integration:**
- Wrapped root layout with top-level ErrorBoundary for catastrophic errors
- Added NetworkStatusIndicator to main page for offline sync visibility
- Wrapped daily summary section with isolated DataErrorFallback
- Added error boundary to AI assistant page with ComponentErrorFallback
- Wrapped feeding tracking form with FormErrorFallback using withErrorBoundary HOC
- Protected analytics charts with isolated ChartErrorFallback boundaries

**Error Recovery Features:**
- Isolated error boundaries prevent cascade failures
- Retry buttons on all fallback UIs
- Error count tracking with user warnings
- Development-mode error details display
- Automatic error logging to service (when Sentry integrated)

Next: Integration with Sentry for production error tracking

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

maternal-web/app/track/feeding/page.tsx

@@ -44,6 +44,7 @@ import {
 import { useRouter } from 'next/navigation';
 import { AppShell } from '@/components/layouts/AppShell/AppShell';
 import { ProtectedRoute } from '@/components/common/ProtectedRoute';
+import { withErrorBoundary } from '@/components/common/ErrorFallbacks';
 import { useAuth } from '@/lib/auth/AuthContext';
 import { trackingApi, Activity } from '@/lib/api/tracking';
 import { childrenApi, Child } from '@/lib/api/children';
@@ -60,7 +61,7 @@ interface FeedingData {
   amountDescription?: string;
 }
 
-export default function FeedingTrackPage() {
+function FeedingTrackPage() {
   const router = useRouter();
   const { user } = useAuth();
   const [children, setChildren] = useState<Child[]>([]);
@@ -654,3 +655,5 @@ export default function FeedingTrackPage() {
     </ProtectedRoute>
   );
 }
+
+export default withErrorBoundary(FeedingTrackPage, 'form');