feat: complete Sprint 3 Expo mobile app scaffold + all screens

app/(app)/remittances/[id].tsx

@@ -0,0 +1,41 @@
+import { View, Text, ScrollView, TouchableOpacity, ActivityIndicator } from 'react-native';
+import { useLocalSearchParams, router } from 'expo-router';
+import { useQuery } from '@tanstack/react-query';
+import { api } from '../../../services/api';
+
+export default function RemittanceDetailScreen() {
+  const { id } = useLocalSearchParams<{ id: string }>();
+  const { data, isLoading } = useQuery({
+    queryKey: ['remittance', id],
+    queryFn: () => api.get(`/api/v1/remittances/${id}`).then(r => r.data),
+  });
+
+  if (isLoading) return <View className="flex-1 items-center justify-center"><ActivityIndicator color="#2563EB" /></View>;
+
+  return (
+    <View className="flex-1 bg-gray-50">
+      <View className="px-4 pt-14 pb-4 bg-primary flex-row items-center">
+        <TouchableOpacity onPress={() => router.back()} className="mr-3">
+          <Text className="text-white text-lg">←</Text>
+        </TouchableOpacity>
+        <Text className="text-white text-xl font-bold">Remittance Detail</Text>
+      </View>
+      <ScrollView className="flex-1 px-4 py-4">
+        <View className="bg-white rounded-2xl border border-gray-100 p-4">
+          <Text className="text-3xl font-bold text-gray-900 mb-1">₱{Number(data?.totalAmount ?? 0).toLocaleString()}</Text>
+          <Text className="text-gray-500 text-sm mb-4">{new Date(data?.createdAt).toLocaleDateString()}</Text>
+          <View className="border-t border-gray-100 pt-4">
+            <Text className="text-gray-500 text-xs mb-0.5">Status</Text>
+            <Text className="font-semibold text-gray-900">{data?.status}</Text>
+          </View>
+          {data?.notes && (
+            <View className="border-t border-gray-100 pt-4 mt-4">
+              <Text className="text-gray-500 text-xs mb-0.5">Notes</Text>
+              <Text className="text-gray-900">{data.notes}</Text>
+            </View>
+          )}
+        </View>
+      </ScrollView>
+    </View>
+  );
+}