Implement comprehensive tracking system and analytics dashboard

- Add Feeding Tracker with 3 feeding types (breast, bottle, solid)
  - Built-in timer for breastfeeding sessions
  - Recent feeding history with delete functionality
  - Form validation and child selection

- Add Sleep Tracker with duration tracking
  - Start/end time inputs with "Now" quick buttons
  - Sleep quality and location tracking
  - Ongoing sleep support with real-time duration
  - Recent sleep activities list

- Add Diaper Tracker with comprehensive monitoring
  - 4 diaper types (wet, dirty, both, dry)
  - Multiple condition selectors
  - Rash monitoring with severity levels
  - Color-coded visual indicators

- Add Insights/Analytics Dashboard
  - Summary statistics cards (feedings, sleep, diapers)
  - Interactive charts using Recharts (bar, line, pie)
  - Date range filtering (7/30/90 days)
  - Activity timeline and distribution
  - Recent activities list

- Add Settings page with backend integration
  - Profile update functionality with API integration
  - Form validation and error handling
  - Loading states and success notifications
  - Notification and appearance preferences

- Add Users API service for profile management

All pages include:
- Full CRUD operations with backend APIs
- Loading states and error handling
- Form validation and user feedback
- Framer Motion animations
- Material-UI design system
- Responsive layouts

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

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

maternal-web/lib/api/users.ts

@@ -0,0 +1,23 @@
+import apiClient from './client';
+
+export interface UpdateProfileData {
+  name?: string;
+}
+
+export interface UserProfile {
+  id: string;
+  email: string;
+  name: string;
+  role: string;
+  locale: string;
+  emailVerified: boolean;
+  families?: string[];
+}
+
+export const usersApi = {
+  // Update user profile
+  updateProfile: async (data: UpdateProfileData): Promise<UserProfile> => {
+    const response = await apiClient.patch('/api/v1/auth/profile', data);
+    return response.data.data;
+  },
+};