feat: Expo scaffold + auth screens + core screens (#39-#46, #48)

app/(app)/_layout.tsx

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+import { Tabs } from 'expo-router';
+import { Text } from 'react-native';
+
+export default function AppLayout() {
+  return (
+    <Tabs
+      screenOptions={{
+        headerShown: false,
+        tabBarActiveTintColor: '#2563EB',
+        tabBarInactiveTintColor: '#6B7280',
+        tabBarStyle: { paddingBottom: 4 },
+      }}
+    >
+      <Tabs.Screen
+        name="dashboard"
+        options={{ title: 'Home', tabBarIcon: ({ color }) => <Text style={{ color, fontSize: 20 }}>🏠</Text> }}
+      />
+      <Tabs.Screen
+        name="clients"
+        options={{ title: 'Clients', tabBarIcon: ({ color }) => <Text style={{ color, fontSize: 20 }}>👥</Text> }}
+      />
+      <Tabs.Screen
+        name="payments"
+        options={{ title: 'Payments', tabBarIcon: ({ color }) => <Text style={{ color, fontSize: 20 }}>💰</Text> }}
+      />
+      <Tabs.Screen
+        name="remittances"
+        options={{ title: 'Remit', tabBarIcon: ({ color }) => <Text style={{ color, fontSize: 20 }}>📋</Text> }}
+      />
+      <Tabs.Screen
+        name="tickets"
+        options={{ title: 'Tickets', tabBarIcon: ({ color }) => <Text style={{ color, fontSize: 20 }}>🎫</Text> }}
+      />
+      <Tabs.Screen
+        name="profile"
+        options={{ title: 'Profile', tabBarIcon: ({ color }) => <Text style={{ color, fontSize: 20 }}>👤</Text> }}
+      />
+      <Tabs.Screen name="installations" options={{ href: null }} />
+    </Tabs>
+  );
+}

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

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+import { View, Text, ScrollView, ActivityIndicator, TouchableOpacity, Linking } from 'react-native';
+import { useLocalSearchParams, router } from 'expo-router';
+import { useQuery } from '@tanstack/react-query';
+import { useState } from 'react';
+import { api } from '../../../services/api';
+
+export default function ClientDetailScreen() {
+  const { id } = useLocalSearchParams<{ id: string }>();
+  const [tab, setTab] = useState<'profile' | 'subscription' | 'invoices' | 'payments'>('profile');
+
+  const { data: client, isLoading } = useQuery({
+    queryKey: ['client', id],
+    queryFn: () => api.get(`/api/v1/clients/${id}`).then(r => r.data),
+  });
+
+  const { data: invoices } = useQuery({
+    queryKey: ['client-invoices', id],
+    queryFn: () => api.get(`/api/v1/invoices?clientId=${id}&limit=20`).then(r => r.data?.data ?? r.data),
+    enabled: tab === 'invoices',
+  });
+
+  const { data: payments } = useQuery({
+    queryKey: ['client-payments', id],
+    queryFn: () => api.get(`/api/v1/clients/${id}/payments`).then(r => r.data?.data ?? r.data),
+    enabled: tab === 'payments',
+  });
+
+  if (isLoading) return <View className="flex-1 items-center justify-center"><ActivityIndicator color="#2563EB" /></View>;
+
+  const TABS = ['profile', 'subscription', 'invoices', 'payments'] as const;
+
+  return (
+    <View className="flex-1 bg-gray-50">
+      <View className="px-4 pt-14 pb-3 bg-white border-b border-gray-100">
+        <TouchableOpacity onPress={() => router.back()} className="mb-2">
+          <Text className="text-primary">← Back</Text>
+        </TouchableOpacity>
+        <Text className="text-xl font-bold text-gray-900">{client?.firstName} {client?.lastName}</Text>
+        <Text className="text-gray-500 text-sm">{client?.accountNumber}</Text>
+        <View className="flex-row mt-3 gap-2">
+          {TABS.map(t => (
+            <TouchableOpacity key={t} onPress={() => setTab(t)}
+              className={`px-3 py-1.5 rounded-full ${tab === t ? 'bg-primary' : 'bg-gray-100'}`}>
+              <Text className={`text-xs font-medium capitalize ${tab === t ? 'text-white' : 'text-gray-600'}`}>{t}</Text>
+            </TouchableOpacity>
+          ))}
+        </View>
+      </View>
+
+      <ScrollView className="flex-1 px-4 py-4">
+        {tab === 'profile' && (
+          <View className="bg-white rounded-2xl border border-gray-100">
+            {[
+              { label: 'Full Name', value: `${client?.firstName} ${client?.lastName}` },
+              { label: 'Phone', value: client?.phone, action: () => Linking.openURL(`tel:${client?.phone}`) },
+              { label: 'Email', value: client?.email },
+              { label: 'Address', value: client?.address },
+              { label: 'Area', value: client?.area?.name },
+              { label: 'Status', value: client?.status },
+            ].map((row, i) => (
+              <TouchableOpacity key={row.label} onPress={row.action}
+                className={`px-4 py-3 ${i > 0 ? 'border-t border-gray-100' : ''}`}>
+                <Text className="text-gray-500 text-xs mb-0.5">{row.label}</Text>
+                <Text className={`text-gray-900 font-medium ${row.action ? 'text-primary' : ''}`}>{row.value ?? '—'}</Text>
+              </TouchableOpacity>
+            ))}
+          </View>
+        )}
+
+        {tab === 'subscription' && (
+          <View className="bg-white rounded-2xl border border-gray-100 p-4">
+            <Text className="font-semibold text-gray-900 mb-3">Current Subscription</Text>
+            {client?.subscription ? (
+              <>
+                <Text className="text-gray-700">Plan: <Text className="font-medium">{client.subscription.plan?.name}</Text></Text>
+                <Text className="text-gray-700 mt-1">Status: <Text className="font-medium capitalize">{client.subscription.status}</Text></Text>
+                <Text className="text-gray-700 mt-1">Billing Day: <Text className="font-medium">{client.subscription.billingDay}</Text></Text>
+                <Text className="text-gray-700 mt-1">Monthly: <Text className="font-medium">₱{client.subscription.plan?.price?.toLocaleString()}</Text></Text>
+              </>
+            ) : (
+              <Text className="text-gray-400">No active subscription</Text>
+            )}
+          </View>
+        )}
+
+        {tab === 'invoices' && (
+          <View>
+            {(invoices ?? []).map((inv: any) => (
+              <View key={inv.id} className="bg-white rounded-xl p-4 mb-2 border border-gray-100">
+                <Text className="font-medium text-gray-900">{inv.invoiceNumber}</Text>
+                <Text className="text-gray-500 text-sm">₱{inv.totalAmount?.toLocaleString()} · {inv.status}</Text>
+              </View>
+            ))}
+            {!invoices?.length && <Text className="text-gray-400 text-center py-10">No invoices</Text>}
+          </View>
+        )}
+
+        {tab === 'payments' && (
+          <View>
+            {(payments ?? []).map((p: any) => (
+              <View key={p.id} className="bg-white rounded-xl p-4 mb-2 border border-gray-100">
+                <Text className="font-medium text-gray-900">₱{p.amount?.toLocaleString()}</Text>
+                <Text className="text-gray-500 text-sm">{p.paymentMethod} · {new Date(p.paymentDate).toLocaleDateString()}</Text>
+              </View>
+            ))}
+            {!payments?.length && <Text className="text-gray-400 text-center py-10">No payments</Text>}
+          </View>
+        )}
+      </ScrollView>
+    </View>
+  );
+}

app/(app)/clients/index.tsx

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+import { useState } from 'react';
+import { View, Text, TextInput, FlatList, TouchableOpacity, ActivityIndicator } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import { router } from 'expo-router';
+import { api } from '../../../services/api';
+
+const STATUS_COLOR: Record<string, string> = {
+  active: '#16A34A', suspended: '#DC2626', pending: '#D97706', cancelled: '#6B7280',
+};
+
+export default function ClientsScreen() {
+  const [search, setSearch] = useState('');
+  const { data, isLoading } = useQuery({
+    queryKey: ['clients'],
+    queryFn: () => api.get('/api/v1/clients?limit=100').then(r => r.data?.data ?? r.data),
+  });
+
+  const filtered = (data ?? []).filter((c: any) =>
+    [c.firstName, c.lastName, c.accountNumber, c.phone].join(' ').toLowerCase().includes(search.toLowerCase())
+  );
+
+  return (
+    <View className="flex-1 bg-gray-50">
+      <View className="px-4 pt-14 pb-3 bg-white border-b border-gray-100">
+        <Text className="text-xl font-bold text-gray-900 mb-3">Clients</Text>
+        <TextInput
+          className="bg-gray-100 rounded-xl px-4 py-2 text-base"
+          placeholder="Search name, account #, phone..."
+          value={search}
+          onChangeText={setSearch}
+        />
+      </View>
+
+      {isLoading ? (
+        <View className="flex-1 items-center justify-center">
+          <ActivityIndicator color="#2563EB" />
+        </View>
+      ) : (
+        <FlatList
+          data={filtered}
+          keyExtractor={(item) => item.id}
+          contentContainerStyle={{ padding: 16 }}
+          renderItem={({ item }) => (
+            <TouchableOpacity
+              className="bg-white rounded-xl p-4 mb-2 border border-gray-100 flex-row items-center"
+              onPress={() => router.push(`/(app)/clients/${item.id}`)}
+            >
+              <View className="w-10 h-10 rounded-full bg-blue-100 items-center justify-center mr-3">
+                <Text className="text-primary font-bold">{item.firstName?.[0]?.toUpperCase()}</Text>
+              </View>
+              <View className="flex-1">
+                <Text className="font-semibold text-gray-900">{item.firstName} {item.lastName}</Text>
+                <Text className="text-gray-500 text-sm">{item.accountNumber} · {item.phone}</Text>
+              </View>
+              <View className="px-2 py-1 rounded-full" style={{ backgroundColor: `${STATUS_COLOR[item.status] ?? '#6B7280'}20` }}>
+                <Text className="text-xs font-medium capitalize" style={{ color: STATUS_COLOR[item.status] ?? '#6B7280' }}>
+                  {item.status}
+                </Text>
+              </View>
+            </TouchableOpacity>
+          )}
+          ListEmptyComponent={
+            <View className="items-center py-20">
+              <Text className="text-gray-400">No clients found</Text>
+            </View>
+          }
+        />
+      )}
+    </View>
+  );
+}

app/(app)/dashboard.tsx

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+import { View, Text, ScrollView, RefreshControl, ActivityIndicator } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import { api } from '../../services/api';
+import { useAuthStore } from '../../stores/authStore';
+
+function KpiCard({ label, value, color }: { label: string; value: string | number; color: string }) {
+  return (
+    <View className="bg-white rounded-2xl p-4 flex-1 mx-1 shadow-sm border border-gray-100">
+      <Text className="text-gray-500 text-xs mb-1">{label}</Text>
+      <Text className={`text-2xl font-bold`} style={{ color }}>{value}</Text>
+    </View>
+  );
+}
+
+export default function DashboardScreen() {
+  const { user } = useAuthStore();
+  const { data, isLoading, refetch, isRefetching } = useQuery({
+    queryKey: ['dashboard'],
+    queryFn: () => api.get('/api/v1/dashboard/summary').then(r => r.data),
+  });
+
+  return (
+    <ScrollView
+      className="flex-1 bg-gray-50"
+      refreshControl={<RefreshControl refreshing={isRefetching} onRefresh={refetch} />}
+    >
+      <View className="px-4 pt-14 pb-4 bg-primary">
+        <Text className="text-white text-sm opacity-80">Welcome back,</Text>
+        <Text className="text-white text-xl font-bold">{user?.firstName ?? 'Field Staff'}</Text>
+      </View>
+
+      {isLoading ? (
+        <View className="flex-1 items-center justify-center py-20">
+          <ActivityIndicator color="#2563EB" />
+        </View>
+      ) : (
+        <View className="px-3 py-4">
+          <Text className="text-gray-700 font-semibold mb-3 px-1">Overview</Text>
+          <View className="flex-row mb-3">
+            <KpiCard label="Total Clients" value={data?.totalClients ?? 0} color="#2563EB" />
+            <KpiCard label="Active Subs" value={data?.activeSubscriptions ?? 0} color="#16A34A" />
+          </View>
+          <View className="flex-row mb-6">
+            <KpiCard label="Overdue" value={data?.overdueInvoices ?? 0} color="#DC2626" />
+            <KpiCard label="Today Collections" value={`₱${(data?.todayCollections ?? 0).toLocaleString()}`} color="#D97706" />
+          </View>
+
+          <Text className="text-gray-700 font-semibold mb-3 px-1">Recent Tickets</Text>
+          {(data?.recentTickets ?? []).length === 0 ? (
+            <View className="bg-white rounded-2xl p-6 items-center border border-gray-100">
+              <Text className="text-gray-400">No recent tickets</Text>
+            </View>
+          ) : (
+            (data?.recentTickets ?? []).map((t: any) => (
+              <View key={t.id} className="bg-white rounded-xl p-4 mb-2 border border-gray-100">
+                <Text className="font-medium text-gray-900">{t.subject}</Text>
+                <Text className="text-gray-500 text-sm mt-1">{t.clientName} · {t.status}</Text>
+              </View>
+            ))
+          )}
+        </View>
+      )}
+    </ScrollView>
+  );
+}

app/(app)/payments/index.tsx

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+import { View, Text, TouchableOpacity } from 'react-native';
+import { useRouter } from 'expo-router';
+
+export default function PaymentsScreen() {
+  const router = useRouter();
+  return (
+    <View className="flex-1 bg-gray-50 pt-14 px-4">
+      <Text className="text-2xl font-bold text-gray-900 mb-6">Payments</Text>
+      <TouchableOpacity
+        className="bg-primary rounded-2xl p-5 items-center"
+        onPress={() => router.push('/(app)/payments/record')}
+      >
+        <Text className="text-white text-lg font-semibold">💳 Record Payment</Text>
+        <Text className="text-blue-100 text-sm mt-1">Accept cash, GCash, or bank transfer</Text>
+      </TouchableOpacity>
+    </View>
+  );
+}

app/(app)/payments/record.tsx

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+import { useState } from 'react';
+import { View, Text, TextInput, TouchableOpacity, ScrollView, Alert, ActivityIndicator } from 'react-native';
+import { useRouter } from 'expo-router';
+import { api } from '../../../services/api';
+
+const METHODS = ['Cash', 'GCash', 'Maya', 'Bank Transfer'];
+
+export default function RecordPaymentScreen() {
+  const router = useRouter();
+  const [accountNumber, setAccountNumber] = useState('');
+  const [client, setClient] = useState<any>(null);
+  const [amount, setAmount] = useState('');
+  const [method, setMethod] = useState('Cash');
+  const [reference, setReference] = useState('');
+  const [loading, setLoading] = useState(false);
+  const [searching, setSearching] = useState(false);
+
+  const searchClient = async () => {
+    if (!accountNumber.trim()) return;
+    setSearching(true);
+    try {
+      const res = await api.get(`/api/v1/clients?accountNumber=${accountNumber.trim()}`);
+      const clients = res.data?.data ?? res.data?.results ?? [];
+      setClient(clients[0] ?? null);
+      if (!clients[0]) Alert.alert('Not found', 'No client with that account number.');
+    } catch { Alert.alert('Error', 'Could not search clients.'); }
+    finally { setSearching(false); }
+  };
+
+  const submit = async () => {
+    if (!client || !amount) return Alert.alert('Required', 'Select a client and enter amount.');
+    setLoading(true);
+    try {
+      await api.post('/api/v1/payments', {
+        clientId: client.id,
+        amount: parseFloat(amount),
+        paymentMethod: method.toLowerCase().replace(' ', '_'),
+        referenceNumber: reference || undefined,
+        paymentDate: new Date().toISOString().split('T')[0],
+      });
+      Alert.alert('Success', 'Payment recorded!', [{ text: 'OK', onPress: () => router.back() }]);
+    } catch (e: any) {
+      Alert.alert('Failed', e?.response?.data?.message ?? 'Could not record payment.');
+    } finally { setLoading(false); }
+  };
+
+  return (
+    <ScrollView className="flex-1 bg-gray-50 pt-14">
+      <TouchableOpacity className="px-4 mb-4" onPress={() => router.back()}>
+        <Text className="text-primary">← Back</Text>
+      </TouchableOpacity>
+      <Text className="text-2xl font-bold text-gray-900 px-4 mb-6">Record Payment</Text>
+
+      <View className="bg-white mx-4 rounded-2xl p-5 border border-gray-100 mb-4">
+        <Text className="text-sm font-medium text-gray-700 mb-2">Account Number</Text>
+        <View className="flex-row gap-2">
+          <TextInput
+            className="flex-1 border border-gray-300 rounded-xl px-3 py-2.5 text-sm bg-gray-50"
+            placeholder="e.g. 2024-0001"
+            value={accountNumber}
+            onChangeText={setAccountNumber}
+          />
+          <TouchableOpacity className="bg-primary rounded-xl px-4 items-center justify-center" onPress={searchClient}>
+            {searching ? <ActivityIndicator color="#fff" size="small" /> : <Text className="text-white font-medium text-sm">Find</Text>}
+          </TouchableOpacity>
+        </View>
+        {client && (
+          <View className="mt-3 bg-blue-50 rounded-xl p-3">
+            <Text className="text-primary font-semibold">{client.name}</Text>
+            <Text className="text-gray-500 text-xs">{client.accountNumber} · {client.status}</Text>
+          </View>
+        )}
+      </View>
+
+      <View className="bg-white mx-4 rounded-2xl p-5 border border-gray-100 mb-4">
+        <Text className="text-sm font-medium text-gray-700 mb-2">Amount (₱)</Text>
+        <TextInput
+          className="border border-gray-300 rounded-xl px-3 py-2.5 text-sm bg-gray-50"
+          placeholder="0.00"
+          value={amount}
+          onChangeText={setAmount}
+          keyboardType="decimal-pad"
+        />
+
+        <Text className="text-sm font-medium text-gray-700 mt-4 mb-2">Payment Method</Text>
+        <View className="flex-row flex-wrap gap-2">
+          {METHODS.map(m => (
+            <TouchableOpacity
+              key={m}
+              className={`px-4 py-2 rounded-xl border ${method === m ? 'bg-primary border-primary' : 'border-gray-200 bg-white'}`}
+              onPress={() => setMethod(m)}
+            >
+              <Text className={`text-sm font-medium ${method === m ? 'text-white' : 'text-gray-700'}`}>{m}</Text>
+            </TouchableOpacity>
+          ))}
+        </View>
+
+        <Text className="text-sm font-medium text-gray-700 mt-4 mb-2">Reference # (optional)</Text>
+        <TextInput
+          className="border border-gray-300 rounded-xl px-3 py-2.5 text-sm bg-gray-50"
+          placeholder="GCash ref / OR number"
+          value={reference}
+          onChangeText={setReference}
+        />
+      </View>
+
+      <TouchableOpacity
+        className={`mx-4 rounded-2xl py-4 items-center mb-8 ${loading ? 'bg-blue-400' : 'bg-primary'}`}
+        onPress={submit}
+        disabled={loading}
+      >
+        {loading ? <ActivityIndicator color="#fff" /> : <Text className="text-white font-semibold text-base">Record Payment</Text>}
+      </TouchableOpacity>
+    </ScrollView>
+  );
+}

app/(app)/profile.tsx

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+import { View, Text, TouchableOpacity, Alert, ScrollView } from 'react-native';
+import { useAuthStore } from '../../stores/authStore';
+import { router } from 'expo-router';
+
+export default function ProfileScreen() {
+  const { user, logout, tenantSlug } = useAuthStore();
+
+  const handleLogout = () => {
+    Alert.alert('Sign Out', 'Are you sure you want to sign out?', [
+      { text: 'Cancel', style: 'cancel' },
+      {
+        text: 'Sign Out', style: 'destructive',
+        onPress: async () => {
+          await logout();
+          router.replace('/(auth)/company-code');
+        }
+      }
+    ]);
+  };
+
+  return (
+    <ScrollView className="flex-1 bg-gray-50">
+      <View className="px-4 pt-14 pb-6 bg-primary">
+        <View className="w-16 h-16 rounded-full bg-white/20 items-center justify-center mb-3">
+          <Text className="text-white text-2xl font-bold">
+            {user?.firstName?.[0]?.toUpperCase() ?? 'U'}
+          </Text>
+        </View>
+        <Text className="text-white text-xl font-bold">{user?.firstName} {user?.lastName}</Text>
+        <Text className="text-white/70 text-sm">{user?.role} · {tenantSlug}</Text>
+      </View>
+
+      <View className="px-4 py-6">
+        <View className="bg-white rounded-2xl border border-gray-100 mb-4">
+          {[
+            { label: 'Username', value: user?.username },
+            { label: 'Email', value: user?.email },
+            { label: 'Role', value: user?.role },
+            { label: 'Company', value: tenantSlug },
+          ].map((item, i) => (
+            <View key={item.label} className={`px-4 py-3 ${i > 0 ? 'border-t border-gray-100' : ''}`}>
+              <Text className="text-gray-500 text-xs mb-0.5">{item.label}</Text>
+              <Text className="text-gray-900 font-medium">{item.value ?? '—'}</Text>
+            </View>
+          ))}
+        </View>
+
+        <TouchableOpacity
+          className="bg-red-50 border border-red-200 rounded-2xl py-4 items-center"
+          onPress={handleLogout}
+        >
+          <Text className="text-red-600 font-semibold">Sign Out</Text>
+        </TouchableOpacity>
+      </View>
+    </ScrollView>
+  );
+}

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

@@ -0,0 +1,60 @@
+import { View, Text, ScrollView, ActivityIndicator, TouchableOpacity, TextInput, Alert } from 'react-native';
+import { useLocalSearchParams, useRouter } from 'expo-router';
+import { useQuery } from '@tanstack/react-query';
+import { useState } from 'react';
+import { api } from '../../../services/api';
+
+export default function TicketDetailScreen() {
+  const { id } = useLocalSearchParams<{ id: string }>();
+  const router = useRouter();
+  const [reply, setReply] = useState('');
+  const { data: ticket, isLoading, refetch } = useQuery({
+    queryKey: ['ticket', id],
+    queryFn: () => api.get(`/api/v1/tickets/${id}`).then(r => r.data),
+  });
+
+  const sendReply = async () => {
+    if (!reply.trim()) return;
+    try {
+      await api.post(`/api/v1/tickets/${id}/messages`, { message: reply });
+      setReply('');
+      refetch();
+    } catch { Alert.alert('Error', 'Could not send reply.'); }
+  };
+
+  if (isLoading) return <ActivityIndicator color="#2563EB" className="flex-1 mt-20" />;
+
+  return (
+    <View className="flex-1 bg-gray-50">
+      <View className="pt-14 pb-4 px-4 bg-white border-b border-gray-100">
+        <TouchableOpacity onPress={() => router.back()} className="mb-2">
+          <Text className="text-primary text-sm">← Tickets</Text>
+        </TouchableOpacity>
+        <Text className="text-lg font-bold text-gray-900">{ticket?.subject}</Text>
+        <Text className="text-gray-500 text-xs">{ticket?.clientName} · {ticket?.status}</Text>
+      </View>
+
+      <ScrollView className="flex-1 px-4 py-4">
+        {(ticket?.messages ?? []).map((m: any) => (
+          <View key={m.id} className={`mb-3 p-3 rounded-xl max-w-xs ${m.senderType === 'staff' ? 'bg-primary self-end' : 'bg-white self-start border border-gray-100'}`}>
+            <Text className={m.senderType === 'staff' ? 'text-white text-sm' : 'text-gray-900 text-sm'}>{m.message}</Text>
+            <Text className={`text-xs mt-1 ${m.senderType === 'staff' ? 'text-blue-200' : 'text-gray-400'}`}>{m.senderName}</Text>
+          </View>
+        ))}
+      </ScrollView>
+
+      <View className="px-4 py-3 bg-white border-t border-gray-100 flex-row gap-2">
+        <TextInput
+          className="flex-1 border border-gray-200 rounded-xl px-3 py-2.5 text-sm bg-gray-50"
+          placeholder="Type a reply..."
+          value={reply}
+          onChangeText={setReply}
+          multiline
+        />
+        <TouchableOpacity className="bg-primary rounded-xl px-4 items-center justify-center" onPress={sendReply}>
+          <Text className="text-white font-medium text-sm">Send</Text>
+        </TouchableOpacity>
+      </View>
+    </View>
+  );
+}

app/(app)/tickets/index.tsx

@@ -0,0 +1,50 @@
+import { View, Text, FlatList, ActivityIndicator, TouchableOpacity, RefreshControl } from 'react-native';
+import { useQuery } from '@tanstack/react-query';
+import { useRouter } from 'expo-router';
+import { api } from '../../../services/api';
+
+const STATUS_COLOR: Record<string, string> = {
+  open: 'bg-yellow-100 text-yellow-700',
+  in_progress: 'bg-blue-100 text-blue-700',
+  resolved: 'bg-green-100 text-green-700',
+  closed: 'bg-gray-100 text-gray-500',
+};
+
+export default function TicketsScreen() {
+  const router = useRouter();
+  const { data, isLoading, refetch, isRefetching } = useQuery({
+    queryKey: ['tickets'],
+    queryFn: () => api.get('/api/v1/tickets').then(r => r.data?.data ?? r.data?.results ?? r.data),
+  });
+
+  const tickets = Array.isArray(data) ? data : [];
+
+  return (
+    <View className="flex-1 bg-gray-50 pt-14">
+      <Text className="text-2xl font-bold text-gray-900 px-4 mb-4">Tickets</Text>
+      {isLoading ? <ActivityIndicator color="#2563EB" className="mt-10" /> : (
+        <FlatList
+          data={tickets}
+          keyExtractor={(item) => item.id}
+          refreshControl={<RefreshControl refreshing={isRefetching} onRefresh={refetch} />}
+          contentContainerStyle={{ paddingHorizontal: 16, paddingBottom: 24 }}
+          renderItem={({ item }) => (
+            <TouchableOpacity
+              className="bg-white rounded-xl p-4 mb-2 border border-gray-100"
+              onPress={() => router.push(`/(app)/tickets/${item.id}`)}
+            >
+              <View className="flex-row justify-between items-start">
+                <Text className="flex-1 font-medium text-gray-900 mr-2">{item.subject}</Text>
+                <View className={`px-2 py-0.5 rounded-full ${STATUS_COLOR[item.status] ?? 'bg-gray-100 text-gray-500'}`}>
+                  <Text className="text-xs font-medium">{item.status}</Text>
+                </View>
+              </View>
+              <Text className="text-gray-400 text-xs mt-1">{item.clientName} · {item.priority}</Text>
+            </TouchableOpacity>
+          )}
+          ListEmptyComponent={<Text className="text-gray-400 text-center mt-10">No tickets</Text>}
+        />
+      )}
+    </View>
+  );
+}