Add Positive Pay, statement guide v1.0, onboarding, and switch every feature on

- Positive Pay on the 12 Oct /pps contract (account number, not account ID):
  OTP enrollment, cheque submit, saved cheques, detail and stop payment.
  Full flow passed on the phone against mobile-banking-backend.lincpay.
- Statement & Mini Statement guide v1.0 (14 Oct): mini statement JSON on
  Home and the Statement screen; dated PDF export with the password rule.
- Onboarding slides and splash screen, Inter font, shared Icon and
  TypewriterText components, nearby branches via OpenStreetMap.
- Every feature switched on; the 14 Oct switch set is kept in
  featureConfig.stage-2026-10-14.ts. Loans run on demo data until the
  backend has /loans routes.
- npm run android wraps run-android for shells spawned from VS Code.
- OpenProject work packages updated to 14-10-2026 status, with screenshots
  of Positive Pay, statement, loans and cards.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/components/TransactionItem/index.tsx

@@ -4,7 +4,7 @@ import {
   Text,
   View,
 } from 'react-native';
-import Ionicons from '@react-native-vector-icons/ionicons';
+import { Icon } from '../Icon';
 
 import type { TransactionRecord } from '../../types/app';
 import { useTheme, textStyles } from '../../theme';
@@ -46,7 +46,7 @@ const TransactionItemComponent = ({ item }: TransactionItemProps) => {
       color: theme.colors.danger,
       surface: theme.colors.dangerSurface,
       border: theme.colors.dangerBorder,
-      label: 'HIGH RISK',
+      label: 'High risk',
       icon: 'alert-circle' as const,
     },
   }[riskLevel];
@@ -65,7 +65,7 @@ const TransactionItemComponent = ({ item }: TransactionItemProps) => {
             },
           ]}
         >
-          <Ionicons 
+          <Icon 
             name={isCredit ? 'chevron-down' : 'chevron-up'} 
             size={18} 
             color={isCredit ? theme.colors.success : theme.colors.textSecondary}