feat: Implement comprehensive error handling and production deployment pipeline

## Error Handling System
- Add centralized error handling utilities (errorHandler.ts)
- Create reusable error components (ErrorMessage, ErrorToast)
- Implement multilingual error support (preserves backend error messages in 5 languages)
- Update 15+ forms and components with consistent error handling
  - Auth forms: login, register, forgot-password
  - Family management: family page, join family dialog
  - Child management: child dialog
  - All tracking forms: feeding, sleep, diaper, medicine, growth, activity

## Production Build Fixes
- Fix backend TypeScript errors: InviteCode.uses → InviteCode.useCount (5 instances)
- Remove non-existent savedFamily variable from registration response
- Fix admin panel TypeScript errors: SimpleMDE toolbar type, PieChart label type

## User Experience Improvements
- Auto-uppercase invite code and share code inputs
- Visual feedback for case conversion with helper text
- Improved form validation with error codes

## CI/CD Pipeline
- Create comprehensive production deployment checklist (PRODUCTION_DEPLOYMENT_CHECKLIST.md)
- Add automated pre-deployment check script (pre-deploy-check.sh)
  - Validates frontend, backend, and admin panel builds
  - Checks git status, branch, and sync state
  - Verifies environment files and migrations
- Add quick start deployment guide (DEPLOYMENT_QUICK_START.md)
- Add production deployment automation template (deploy-production.sh)

## Cleanup
- Remove outdated push notifications documentation files
- Remove outdated PWA implementation plan

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

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

maternal-web/app/(auth)/forgot-password/page.tsx

@@ -15,30 +15,31 @@ import { Email, ArrowBack } from '@mui/icons-material';
 import { motion } from 'framer-motion';
 import Link from 'next/link';
 import apiClient from '@/lib/api/client';
+import { useErrorMessage } from '@/components/common/ErrorMessage';
+import { formatErrorMessage } from '@/lib/utils/errorHandler';
 
 export default function ForgotPasswordPage() {
   const [email, setEmail] = useState('');
   const [loading, setLoading] = useState(false);
-  const [error, setError] = useState('');
+  const { error, showError, clearError, hasError } = useErrorMessage();
   const [success, setSuccess] = useState(false);
 
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
 
     if (!email.trim()) {
-      setError('Please enter your email address');
+      showError({ message: 'Please enter your email address', code: 'VALIDATION_EMAIL_REQUIRED' });
       return;
     }
 
     setLoading(true);
-    setError('');
+    clearError();
 
     try {
       await apiClient.post('/api/v1/auth/password/forgot', { email });
       setSuccess(true);
     } catch (err: any) {
-      console.error('Forgot password error:', err);
-      setError(err.response?.data?.message || 'Failed to send reset email. Please try again.');
+      showError(err);
     } finally {
       setLoading(false);
     }
@@ -97,9 +98,9 @@ export default function ForgotPasswordPage() {
                 </Typography>
               </Box>
 
-              {error && (
-                <Alert severity="error" sx={{ mb: 3, borderRadius: 2 }}>
-                  {error}
+              {hasError && (
+                <Alert severity="error" sx={{ mb: 3, borderRadius: 2 }} onClose={clearError}>
+                  {formatErrorMessage(error)}
                 </Alert>
               )}