feat: complete all screens - client tabs, payments list, remittance detail, new ticket, installations tab

- Client detail: Subscription/Invoices/Payments tabs now fully functional
- Payments: proper list with today's total + live search prefill from client
- Record payment: debounced live search, reference required for non-cash
- Remittances: detail screen with included payments breakdown
- Tickets: status filter chips + create button, new ticket with categories
- Installations: tab now visible with list + confirm flow
- Fix: remove duplicate @react-navigation/elements causing Metro asset error
- Fix: metro.config.js asset resolution from node_modules

app/(app)/_layout.tsx

@@ -31,11 +31,14 @@ export default function AppLayout() {
         name="tickets"
         options={{ title: 'Tickets', tabBarIcon: ({ color }) => <Text style={{ color, fontSize: 20 }}>🎫</Text> }}
       />
+      <Tabs.Screen
+        name="installations"
+        options={{ title: 'Install', 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>
   );
 }