feat(app): navbar restructure, contacts tab and address info window

- Reorder tabs: Storico / Invia / Ricevi / Indirizzi / Contatti
- Invia: ComboBox to quick-fill recipient from saved contacts
- Contatti: new tab to add/remove contacts (name + address), persisted
  to the wallet file via WalletDocument.Contacts
- Indirizzi: clicking any address (left or right click) opens a modal
  window with derivation path, public key and private key as selectable
  text (no copy button needed — user selects and copies manually);
  AddressRow now carries PubKey, PrivKey, DerivPath pre-computed
- AddressInfoWindow: new Window with SelectableTextBlock per field,
  private key section hidden for watch-only wallets
- Loc: adds tab.contacts, addr.*, contacts.*, send.from.contact keys
  in all 6 languages

src/App/Localization/Loc.cs

@@ -93,6 +93,7 @@ public sealed class Loc
         ["tab.history"]           = ["Storico",                                                           "History",                      "Historial",                            "Historique",                               "Histórico",                                "Verlauf"],
         ["tab.addresses"]         = ["Indirizzi",                                                         "Addresses",                    "Direcciones",                          "Adresses",                                 "Endereços",                                "Adressen"],
         ["tab.send"]              = ["Invia",                                                             "Send",                         "Enviar",                               "Envoyer",                                  "Enviar",                                   "Senden"],
+        ["tab.contacts"]          = ["Contatti",                                                          "Contacts",                     "Contactos",                            "Contacts",                                 "Contatos",                                 "Kontakte"],
         ["receive.next"]          = ["Prossimo indirizzo non usato:",                                     "Next unused address:",         "Próxima dirección no usada:",          "Prochaine adresse non utilisée :",         "Próximo endereço não usado:",               "Nächste ungenutzte Adresse:"],
         ["receive.hint"]          = [
             "Ogni pagamento ricevuto qui comparirà nello storico alla prossima sincronizzazione.",
@@ -105,8 +106,18 @@ public sealed class Loc
         ["addr.index"]            = ["Indice",                                                            "Index",                        "Índice",                               "Index",                                    "Índice",                                   "Index"],
         ["addr.address"]          = ["Indirizzo",                                                         "Address",                      "Dirección",                            "Adresse",                                  "Endereço",                                 "Adresse"],
         ["addr.balance"]          = ["Saldo",                                                             "Balance",                      "Saldo",                                "Solde",                                    "Saldo",                                    "Saldo"],
+        ["addr.copied"]           = ["Indirizzo copiato negli appunti",                                   "Address copied to clipboard",  "Dirección copiada al portapapeles",    "Adresse copiée dans le presse-papiers",    "Endereço copiado para a área de transferência", "Adresse in die Zwischenablage kopiert"],
+        ["addr.derivpath"]        = ["Percorso di derivazione:",                                          "Derivation path:",             "Ruta de derivación:",                  "Chemin de dérivation :",                   "Caminho de derivação:",                    "Ableitungspfad:"],
+        ["addr.pubkey"]           = ["Chiave pubblica:",                                                  "Public key:",                  "Clave pública:",                       "Clé publique :",                           "Chave pública:",                           "Öffentlicher Schlüssel:"],
+        ["addr.privkey"]          = ["Chiave privata (WIF):",                                             "Private key (WIF):",           "Clave privada (WIF):",                 "Clé privée (WIF) :",                       "Chave privada (WIF):",                     "Privater Schlüssel (WIF):"],
+        ["addr.show.privkey"]     = ["Mostra",                                                            "Show",                         "Mostrar",                              "Afficher",                                 "Mostrar",                                  "Anzeigen"],
+        ["addr.hide.privkey"]     = ["Nascondi",                                                          "Hide",                         "Ocultar",                              "Masquer",                                  "Ocultar",                                  "Ausblenden"],
         ["addr.receive"]          = ["ricezione",                                                         "receive",                      "recepción",                            "réception",                                "recebimento",                              "Empfang"],
         ["addr.change"]           = ["change",                                                            "change",                       "cambio",                               "monnaie",                                  "troco",                                    "Wechselgeld"],
+        ["addr.info.title"]       = ["Informazioni indirizzo",                                          "Address information",          "Información de dirección",             "Informations sur l'adresse",               "Informações do endereço",                  "Adressinformationen"],
+        ["addr.close"]            = ["Chiudi",                                                          "Close",                        "Cerrar",                               "Fermer",                                   "Fechar",                                   "Schließen"],
+        ["send.from.contact"]     = ["Da contatti:",                                                      "From contacts:",               "De contactos:",                        "Depuis les contacts :",                    "De contatos:",                             "Aus Kontakten:"],
+        ["send.contact.hint"]     = ["seleziona per riempire l'indirizzo",                                "select to fill address",       "selecciona para rellenar la dirección", "sélectionner pour remplir l'adresse",      "selecione para preencher o endereço",      "auswählen um Adresse einzufügen"],
         ["send.to"]               = ["Indirizzo destinatario",                                            "Recipient address",            "Dirección destinataria",               "Adresse du destinataire",                  "Endereço do destinatário",                 "Empfängeradresse"],
         ["send.amount"]           = ["Importo",                                                           "Amount",                       "Importe",                              "Montant",                                  "Valor",                                    "Betrag"],
         ["send.all"]              = ["Invia tutto",                                                       "Send all",                     "Enviar todo",                          "Tout envoyer",                             "Enviar tudo",                              "Alles senden"],
@@ -217,6 +228,15 @@ public sealed class Loc
             "SSL-Zertifikate zurückgesetzt: Verbindung erneut versuchen."],
         ["msg.error"]             = ["Errore",                                                            "Error",                        "Error",                                "Erreur",                                   "Erro",                                     "Fehler"],
 
+        // Contatti
+        ["contacts.name"]         = ["Nome",                                                              "Name",                         "Nombre",                               "Nom",                                      "Nome",                                     "Name"],
+        ["contacts.address"]      = ["Indirizzo",                                                         "Address",                      "Dirección",                            "Adresse",                                  "Endereço",                                 "Adresse"],
+        ["contacts.name.ph"]      = ["Nome contatto",                                                     "Contact name",                 "Nombre del contacto",                  "Nom du contact",                           "Nome do contato",                          "Kontaktname"],
+        ["contacts.address.ph"]   = ["Indirizzo blockchain",                                              "Blockchain address",           "Dirección blockchain",                 "Adresse blockchain",                       "Endereço blockchain",                      "Blockchain-Adresse"],
+        ["contacts.add"]          = ["Aggiungi",                                                          "Add",                          "Agregar",                              "Ajouter",                                  "Adicionar",                                "Hinzufügen"],
+        ["contacts.remove"]       = ["Rimuovi selezionato",                                               "Remove selected",              "Eliminar seleccionado",                "Supprimer la sélection",                   "Remover selecionado",                      "Auswahl entfernen"],
+        ["contacts.empty"]        = ["Nessun contatto salvato.",                                          "No saved contacts.",           "No hay contactos guardados.",          "Aucun contact enregistré.",                "Nenhum contato salvo.",                    "Keine gespeicherten Kontakte."],
+
         // Finestra impostazioni
         ["settings.title"]        = ["Impostazioni",                                                      "Settings",                     "Configuración",                        "Paramètres",                               "Configurações",                            "Einstellungen"],
         ["settings.language"]     = ["Lingua",                                                            "Language",                     "Idioma",                               "Langue",                                   "Idioma",                                   "Sprache"],

src/App/ViewModels/MainWindowViewModel.cs

@@ -21,8 +21,24 @@ namespace PalladiumWallet.App.ViewModels;
 /// <summary>Riga dello storico transazioni per la vista.</summary>
 public sealed record HistoryRow(string Conferma, string Importo, string Txid, string Verificata);
 
-/// <summary>Riga della vista indirizzi (stile Electrum): saldo e uso per indirizzo.</summary>
+/// <summary>Riga della vista indirizzi con chiavi e derivation path pre-calcolati.</summary>
-public sealed record AddressRow(string Tipo, int Indice, string Indirizzo, string Saldo, string NumTx);
+public sealed record AddressRow(
+    string Tipo, int Indice, string Indirizzo, string Saldo, string NumTx,
+    bool IsChange = false, string PubKey = "", string PrivKey = "", string DerivPath = "")
+{
+    public bool HasPrivKey => !string.IsNullOrEmpty(PrivKey);
+}
+
+/// <summary>Dati completi di un indirizzo passati alla finestra di dettaglio.</summary>
+public sealed record AddressInfo(
+    Localization.Loc Loc,
+    string Address, string DerivPath, string PubKey, string PrivKey)
+{
+    public bool HasPrivKey => !string.IsNullOrEmpty(PrivKey);
+}
+
+/// <summary>Contatto in rubrica: nome + indirizzo blockchain.</summary>
+public sealed record ContactEntry(string Name, string Address);
 
 /// <summary>
 /// ViewModel unico dell'applicazione (wizard §15 ridotto + dashboard):
@@ -108,6 +124,18 @@ public partial class MainWindowViewModel : ViewModelBase
     private string Fmt(long sats, bool withLabel = true) =>
         CoinAmount.FormatIn(sats, _config.Unit, withLabel);
 
+    /// <summary>Chiave privata WIF per un indirizzo; stringa vuota se watch-only.</summary>
+    private string KeyWif(bool isChange, int index)
+    {
+        if (_account is null or { IsWatchOnly: true }) return "";
+        try
+        {
+            return _account.GetExtPrivateKey(isChange, index)
+                .PrivateKey.GetWif(PalladiumNetworks.For(Net)).ToString();
+        }
+        catch { return ""; }
+    }
+
     /// <summary>File in attesa di password (apertura da menu File → Apri).</summary>
     private string? _pendingOpenPath;
 
@@ -216,6 +244,73 @@ public partial class MainWindowViewModel : ViewModelBase
 
     public ObservableCollection<AddressRow> Addresses { get; } = [];
 
+    // ---- tab indirizzi ----
+
+    [ObservableProperty]
+    private AddressRow? selectedAddressRow;
+
+    // ---- rubrica contatti ----
+
+    public ObservableCollection<ContactEntry> Contacts { get; } = [];
+
+    [ObservableProperty]
+    private ContactEntry? selectedContactInList;
+
+    /// <summary>Contatto selezionato nella ComboBox del pannello Invia: riempie SendTo.</summary>
+    [ObservableProperty]
+    private ContactEntry? sendToContact;
+
+    partial void OnSendToContactChanged(ContactEntry? value)
+    {
+        if (value is not null)
+            SendTo = value.Address;
+    }
+
+    [ObservableProperty]
+    private string newContactName = "";
+
+    [ObservableProperty]
+    private string newContactAddress = "";
+
+    [RelayCommand]
+    private void AddContact()
+    {
+        var name = NewContactName.Trim();
+        var addr = NewContactAddress.Trim();
+        if (string.IsNullOrEmpty(name) || string.IsNullOrEmpty(addr)) return;
+        Contacts.Add(new ContactEntry(name, addr));
+        NewContactName = NewContactAddress = "";
+        PersistContacts();
+    }
+
+    [RelayCommand]
+    private void RemoveSelectedContact()
+    {
+        if (SelectedContactInList is { } c)
+        {
+            Contacts.Remove(c);
+            SelectedContactInList = null;
+            PersistContacts();
+        }
+    }
+
+    private void PersistContacts()
+    {
+        if (_doc is null || _walletPath is null) return;
+        _doc.Contacts = Contacts
+            .Select(c => new PalladiumWallet.Core.Storage.StoredContact { Name = c.Name, Address = c.Address })
+            .ToList();
+        WalletStore.Save(_doc, _walletPath, _password);
+    }
+
+    private void LoadContacts()
+    {
+        Contacts.Clear();
+        if (_doc is null) return;
+        foreach (var c in _doc.Contacts)
+            Contacts.Add(new ContactEntry(c.Name, c.Address));
+    }
+
     // ---- pannello invia ----
 
     [ObservableProperty]
@@ -495,6 +590,7 @@ public partial class MainWindowViewModel : ViewModelBase
 
         NetworkInfo = $"{doc.Network} · {doc.ScriptKind} · m/{doc.AccountPath}"
             + (doc.IsWatchOnly ? " · watch-only" : "");
+        LoadContacts();
         ApplyCache(doc.Cache);
         IsWalletOpen = true;
         StatusMessage = Loc.Tr("msg.opened");
@@ -516,8 +612,12 @@ public partial class MainWindowViewModel : ViewModelBase
             // Prima della sincronizzazione si mostrano i primi indirizzi derivati.
             Addresses.Clear();
             for (var i = 0; i < 10; i++)
-                Addresses.Add(new AddressRow("ricezione", i,
+                Addresses.Add(new AddressRow(_loc["addr.receive"], i,
-                    _account.GetReceiveAddress(i).ToString(), "—", "—"));
+                    _account.GetReceiveAddress(i).ToString(), "—", "—",
+                    false,
+                    _account.GetPublicKey(false, i).ToHex(),
+                    KeyWif(false, i),
+                    $"m/{_doc!.AccountPath}/0/{i}"));
             return;
         }
         BalanceText = Fmt(cache.ConfirmedSats);
@@ -540,11 +640,15 @@ public partial class MainWindowViewModel : ViewModelBase
         Addresses.Clear();
         foreach (var a in cache.Addresses)
             Addresses.Add(new AddressRow(
-                a.IsChange ? "change" : "ricezione",
+                a.IsChange ? _loc["addr.change"] : _loc["addr.receive"],
                 a.Index,
                 a.Address,
                 a.BalanceSats > 0 ? Fmt(a.BalanceSats, withLabel: false) : (a.TxCount > 0 ? "0" : "—"),
-                a.TxCount > 0 ? a.TxCount.ToString() : "—"));
+                a.TxCount > 0 ? a.TxCount.ToString() : "—",
+                a.IsChange,
+                _account.GetPublicKey(a.IsChange, a.Index).ToHex(),
+                KeyWif(a.IsChange, a.Index),
+                $"m/{_doc!.AccountPath}/{(a.IsChange ? 1 : 0)}/{a.Index}"));
     }
 
     // ---------- comandi wallet ----------
@@ -757,6 +861,10 @@ public partial class MainWindowViewModel : ViewModelBase
         _pendingSend = null;
         HasPendingSend = false;
         History.Clear();
+        Contacts.Clear();
+        SelectedContactInList = null;
+        SendToContact = null;
+        SelectedAddressRow = null;
         IsWalletOpen = false;
         IsConnected = false;
         ConnectionStatus = Loc.Tr("conn.none");

src/App/Views/AddressInfoWindow.axaml

@@ -0,0 +1,49 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:vm="using:PalladiumWallet.App.ViewModels"
+        x:Class="PalladiumWallet.App.Views.AddressInfoWindow"
+        x:DataType="vm:AddressInfo"
+        Title="{Binding Loc[addr.info.title]}"
+        Width="560" SizeToContent="Height"
+        CanResize="False"
+        WindowStartupLocation="CenterOwner">
+
+    <StackPanel Margin="24" Spacing="16">
+
+        <!-- Indirizzo -->
+        <StackPanel Spacing="4">
+            <TextBlock Text="{Binding Loc[addr.address]}" FontSize="11" Foreground="Gray"/>
+            <SelectableTextBlock Text="{Binding Address}"
+                                 FontFamily="monospace" FontSize="13"
+                                 TextWrapping="Wrap"/>
+        </StackPanel>
+
+        <!-- Derivation path -->
+        <StackPanel Spacing="4">
+            <TextBlock Text="{Binding Loc[addr.derivpath]}" FontSize="11" Foreground="Gray"/>
+            <SelectableTextBlock Text="{Binding DerivPath}"
+                                 FontFamily="monospace" FontSize="13"/>
+        </StackPanel>
+
+        <!-- Chiave pubblica -->
+        <StackPanel Spacing="4">
+            <TextBlock Text="{Binding Loc[addr.pubkey]}" FontSize="11" Foreground="Gray"/>
+            <SelectableTextBlock Text="{Binding PubKey}"
+                                 FontFamily="monospace" FontSize="12"
+                                 TextWrapping="Wrap"/>
+        </StackPanel>
+
+        <!-- Chiave privata (solo se disponibile) -->
+        <StackPanel Spacing="4" IsVisible="{Binding HasPrivKey}">
+            <TextBlock Text="{Binding Loc[addr.privkey]}" FontSize="11" Foreground="OrangeRed"/>
+            <SelectableTextBlock Text="{Binding PrivKey}"
+                                 FontFamily="monospace" FontSize="12"
+                                 Foreground="OrangeRed"
+                                 TextWrapping="Wrap"/>
+        </StackPanel>
+
+        <Button Content="{Binding Loc[addr.close]}"
+                HorizontalAlignment="Right"
+                Click="OnCloseClick"/>
+    </StackPanel>
+</Window>

src/App/Views/AddressInfoWindow.axaml.cs

@@ -0,0 +1,20 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using PalladiumWallet.App.ViewModels;
+
+namespace PalladiumWallet.App.Views;
+
+public partial class AddressInfoWindow : Window
+{
+    public AddressInfoWindow()
+    {
+        InitializeComponent();
+    }
+
+    public AddressInfoWindow(AddressInfo info) : this()
+    {
+        DataContext = info;
+    }
+
+    private void OnCloseClick(object? sender, RoutedEventArgs e) => Close();
+}

src/App/Views/MainWindow.axaml

@@ -222,18 +222,10 @@
                 </Grid>
             </Border>
 
-            <!-- Tab: Ricevi / Storico / Indirizzi / Invia -->
+            <!-- Tab: Storico / Invia / Ricevi / Indirizzi / Contatti -->
             <TabControl Grid.Row="2">
-                <TabItem Header="{Binding Loc[tab.receive]}">
-                    <StackPanel Spacing="10" Margin="8">
-                        <TextBlock Text="{Binding Loc[receive.next]}"/>
-                        <SelectableTextBlock Text="{Binding ReceiveAddress}"
-                                             FontFamily="monospace" FontSize="16"/>
-                        <TextBlock Text="{Binding Loc[receive.hint]}"
-                                   Foreground="Gray" FontSize="12" TextWrapping="Wrap"/>
-                    </StackPanel>
-                </TabItem>
 
+                <!-- 1. Storico -->
                 <TabItem Header="{Binding Loc[tab.history]}">
                     <ListBox ItemsSource="{Binding History}" Margin="4">
                         <ListBox.ItemTemplate>
@@ -250,34 +242,23 @@
                     </ListBox>
                 </TabItem>
 
-                <TabItem Header="{Binding Loc[tab.addresses]}">
+                <!-- 2. Invia -->
-                    <Grid RowDefinitions="Auto,*" Margin="4">
-                        <Grid Grid.Row="0" ColumnDefinitions="90,60,*,140,60" Margin="12,4">
-                            <TextBlock Grid.Column="0" Text="{Binding Loc[addr.type]}" FontWeight="Bold"/>
-                            <TextBlock Grid.Column="1" Text="{Binding Loc[addr.index]}" FontWeight="Bold"/>
-                            <TextBlock Grid.Column="2" Text="{Binding Loc[addr.address]}" FontWeight="Bold"/>
-                            <TextBlock Grid.Column="3" Text="{Binding Loc[addr.balance]}" FontWeight="Bold"/>
-                            <TextBlock Grid.Column="4" Text="Tx" FontWeight="Bold"/>
-                        </Grid>
-                        <ListBox Grid.Row="1" ItemsSource="{Binding Addresses}">
-                            <ListBox.ItemTemplate>
-                                <DataTemplate x:DataType="vm:AddressRow">
-                                    <Grid ColumnDefinitions="90,60,*,140,60">
-                                        <TextBlock Grid.Column="0" Text="{Binding Tipo}" Foreground="Gray"/>
-                                        <TextBlock Grid.Column="1" Text="{Binding Indice}" Foreground="Gray"/>
-                                        <SelectableTextBlock Grid.Column="2" Text="{Binding Indirizzo}"
-                                                             FontFamily="monospace" FontSize="13"/>
-                                        <TextBlock Grid.Column="3" Text="{Binding Saldo}" FontFamily="monospace"/>
-                                        <TextBlock Grid.Column="4" Text="{Binding NumTx}" Foreground="Gray"/>
-                                    </Grid>
-                                </DataTemplate>
-                            </ListBox.ItemTemplate>
-                        </ListBox>
-                    </Grid>
-                </TabItem>
-
                 <TabItem Header="{Binding Loc[tab.send]}">
                     <StackPanel Spacing="10" Margin="8" MaxWidth="640" HorizontalAlignment="Left">
+                        <!-- Contatto rapido -->
+                        <StackPanel Orientation="Horizontal" Spacing="8">
+                            <TextBlock Text="{Binding Loc[send.from.contact]}" VerticalAlignment="Center"/>
+                            <ComboBox ItemsSource="{Binding Contacts}"
+                                      SelectedItem="{Binding SendToContact}"
+                                      PlaceholderText="{Binding Loc[send.contact.hint]}"
+                                      MinWidth="220">
+                                <ComboBox.ItemTemplate>
+                                    <DataTemplate x:DataType="vm:ContactEntry">
+                                        <TextBlock Text="{Binding Name}"/>
+                                    </DataTemplate>
+                                </ComboBox.ItemTemplate>
+                            </ComboBox>
+                        </StackPanel>
                         <TextBox PlaceholderText="{Binding Loc[send.to]}" Text="{Binding SendTo}"
                                  FontFamily="monospace"/>
                         <Grid ColumnDefinitions="*,Auto,Auto,Auto">
@@ -302,6 +283,90 @@
                                              FontSize="13"/>
                     </StackPanel>
                 </TabItem>
+
+                <!-- 3. Ricevi -->
+                <TabItem Header="{Binding Loc[tab.receive]}">
+                    <StackPanel Spacing="10" Margin="8">
+                        <TextBlock Text="{Binding Loc[receive.next]}"/>
+                        <SelectableTextBlock Text="{Binding ReceiveAddress}"
+                                             FontFamily="monospace" FontSize="16"/>
+                        <TextBlock Text="{Binding Loc[receive.hint]}"
+                                   Foreground="Gray" FontSize="12" TextWrapping="Wrap"/>
+                    </StackPanel>
+                </TabItem>
+
+                <!-- 4. Indirizzi -->
+                <TabItem Header="{Binding Loc[tab.addresses]}">
+                    <Grid RowDefinitions="Auto,*" Margin="4">
+                        <Grid Grid.Row="0" ColumnDefinitions="90,60,*,140,60" Margin="12,4">
+                            <TextBlock Grid.Column="0" Text="{Binding Loc[addr.type]}" FontWeight="Bold"/>
+                            <TextBlock Grid.Column="1" Text="{Binding Loc[addr.index]}" FontWeight="Bold"/>
+                            <TextBlock Grid.Column="2" Text="{Binding Loc[addr.address]}" FontWeight="Bold"/>
+                            <TextBlock Grid.Column="3" Text="{Binding Loc[addr.balance]}" FontWeight="Bold"/>
+                            <TextBlock Grid.Column="4" Text="Tx" FontWeight="Bold"/>
+                        </Grid>
+                        <ListBox Grid.Row="1" ItemsSource="{Binding Addresses}"
+                                 SelectedItem="{Binding SelectedAddressRow}"
+                                 x:Name="AddressesListBox"
+                                 Tapped="OnAddressListTapped"
+                                 PointerPressed="OnAddressListPointerPressed">
+                            <ListBox.ItemTemplate>
+                                <DataTemplate x:DataType="vm:AddressRow">
+                                    <Grid ColumnDefinitions="90,60,*,140,60">
+                                        <TextBlock Grid.Column="0" Text="{Binding Tipo}" Foreground="Gray"/>
+                                        <TextBlock Grid.Column="1" Text="{Binding Indice}" Foreground="Gray"/>
+                                        <TextBlock Grid.Column="2" Text="{Binding Indirizzo}"
+                                                   FontFamily="monospace" FontSize="13"/>
+                                        <TextBlock Grid.Column="3" Text="{Binding Saldo}" FontFamily="monospace"/>
+                                        <TextBlock Grid.Column="4" Text="{Binding NumTx}" Foreground="Gray"/>
+                                    </Grid>
+                                </DataTemplate>
+                            </ListBox.ItemTemplate>
+                        </ListBox>
+                    </Grid>
+                </TabItem>
+
+                <!-- 5. Contatti -->
+                <TabItem Header="{Binding Loc[tab.contacts]}">
+                    <Grid RowDefinitions="Auto,*,Auto,Auto" Margin="4">
+                        <!-- Intestazioni colonne -->
+                        <Grid Grid.Row="0" ColumnDefinitions="180,*" Margin="12,4">
+                            <TextBlock Grid.Column="0" Text="{Binding Loc[contacts.name]}" FontWeight="Bold"/>
+                            <TextBlock Grid.Column="1" Text="{Binding Loc[contacts.address]}" FontWeight="Bold"/>
+                        </Grid>
+                        <!-- Lista contatti -->
+                        <ListBox Grid.Row="1" ItemsSource="{Binding Contacts}"
+                                 SelectedItem="{Binding SelectedContactInList}">
+                            <ListBox.ItemTemplate>
+                                <DataTemplate x:DataType="vm:ContactEntry">
+                                    <Grid ColumnDefinitions="180,*">
+                                        <TextBlock Grid.Column="0" Text="{Binding Name}"
+                                                   VerticalAlignment="Center"/>
+                                        <SelectableTextBlock Grid.Column="1" Text="{Binding Address}"
+                                                             FontFamily="monospace" FontSize="12"
+                                                             VerticalAlignment="Center"/>
+                                    </Grid>
+                                </DataTemplate>
+                            </ListBox.ItemTemplate>
+                        </ListBox>
+                        <!-- Pulsante rimuovi selezionato -->
+                        <Button Grid.Row="2" Content="{Binding Loc[contacts.remove]}"
+                                Command="{Binding RemoveSelectedContactCommand}"
+                                IsEnabled="{Binding SelectedContactInList, Converter={x:Static ObjectConverters.IsNotNull}}"
+                                Margin="0,6,0,0"/>
+                        <!-- Form aggiungi contatto -->
+                        <Grid Grid.Row="3" ColumnDefinitions="180,*,Auto" Margin="0,8,0,0">
+                            <TextBox Grid.Column="0" PlaceholderText="{Binding Loc[contacts.name.ph]}"
+                                     Text="{Binding NewContactName}" Margin="0,0,6,0"/>
+                            <TextBox Grid.Column="1" PlaceholderText="{Binding Loc[contacts.address.ph]}"
+                                     Text="{Binding NewContactAddress}" FontFamily="monospace"
+                                     Margin="0,0,6,0"/>
+                            <Button Grid.Column="2" Content="{Binding Loc[contacts.add]}"
+                                    Command="{Binding AddContactCommand}"/>
+                        </Grid>
+                    </Grid>
+                </TabItem>
+
             </TabControl>
         </Grid>
 

src/App/Views/MainWindow.axaml.cs

@@ -1,7 +1,12 @@
 using System.Linq;
+using System.Threading.Tasks;
+using Avalonia;
 using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Input.Platform;
 using Avalonia.Interactivity;
 using Avalonia.Platform.Storage;
+using Avalonia.VisualTree;
 using PalladiumWallet.App.ViewModels;
 
 namespace PalladiumWallet.App.Views;
@@ -13,7 +18,6 @@ public partial class MainWindow : Window
         InitializeComponent();
     }
 
-    /// <summary>File → Apri wallet da file (il picker richiede il TopLevel, da qui).</summary>
     private async void OnOpenWalletFileClick(object? sender, RoutedEventArgs e)
     {
         if (DataContext is not MainWindowViewModel vm)
@@ -32,4 +36,26 @@ public partial class MainWindow : Window
         if (files.FirstOrDefault()?.TryGetLocalPath() is { } path)
             vm.OpenFromPath(path);
     }
+
+    private async void OnAddressListTapped(object? sender, TappedEventArgs e)
+    {
+        if (DataContext is not MainWindowViewModel vm || vm.SelectedAddressRow is not { } row)
+            return;
+        var info = new AddressInfo(vm.Loc, row.Indirizzo, row.DerivPath, row.PubKey, row.PrivKey);
+        await new AddressInfoWindow(info).ShowDialog(this);
+    }
+
+    private async void OnAddressListPointerPressed(object? sender, PointerPressedEventArgs e)
+    {
+        if (!e.GetCurrentPoint(null).Properties.IsRightButtonPressed) return;
+        if (sender is not ListBox lb || DataContext is not MainWindowViewModel vm) return;
+
+        var item = (e.Source as Visual)?.FindAncestorOfType<ListBoxItem>();
+        if (item is not { DataContext: AddressRow row }) return;
+
+        lb.SelectedItem = row;
+
+        var info = new AddressInfo(vm.Loc, row.Indirizzo, row.DerivPath, row.PubKey, row.PrivKey);
+        await new AddressInfoWindow(info).ShowDialog(this);
+    }
 }

src/Core/Storage/WalletDocument.cs

@@ -40,6 +40,9 @@ public sealed class WalletDocument
     /// <summary>Etichette per indirizzo/txid (§12).</summary>
     public Dictionary<string, string> Labels { get; set; } = [];
 
+    /// <summary>Rubrica contatti (nome + indirizzo blockchain).</summary>
+    public List<StoredContact> Contacts { get; set; } = [];
+
     /// <summary>Cache dell'ultimo stato sincronizzato (saldo/storico mostrabili offline).</summary>
     public SyncCache? Cache { get; set; }
 
@@ -69,6 +72,13 @@ public sealed class WalletDocument
     };
 }
 
+/// <summary>Contatto in rubrica: nome leggibile + indirizzo blockchain.</summary>
+public sealed class StoredContact
+{
+    public required string Name { get; set; }
+    public required string Address { get; set; }
+}
+
 /// <summary>Stato sincronizzato persistito: permette di mostrare saldo/storico offline.</summary>
 public sealed class SyncCache
 {