fix: tickets freeze (useFocusEffect), comment body render, client status from subscription, activation ticket on install, keyboard avoid payment modal

app/(app)/tasks/index.tsx

@@ -2,6 +2,8 @@ import { useState } from 'react';
 import { View, Text, FlatList, TextInput, TouchableOpacity, ActivityIndicator, RefreshControl, ScrollView } from 'react-native';
 import { SafeAreaView } from 'react-native-safe-area-context';
 import { useQuery } from '@tanstack/react-query';
+import { useFocusEffect } from 'expo-router';
+import { useCallback } from 'react';
 import { router } from 'expo-router';
 import { api } from '../../../services/api';
 
@@ -23,6 +25,9 @@ export default function TasksScreen() {
     queryFn: () => api.get('/api/v1/tickets?limit=100').then(r => r.data?.data ?? r.data ?? []),
   });
 
+  // Refetch list every time this screen comes into focus (fixes stale list after navigating back)
+  useFocusEffect(useCallback(() => { refetch(); }, []));
+
   const tasks = (data ?? []).filter((t: any) => {
     const matchSearch = `${t.subject} ${t.client?.firstName ?? ''} ${t.client?.lastName ?? ''}`.toLowerCase().includes(search.toLowerCase());
     const matchStatus = statusFilter === 'All' || t.status === statusFilter;