fix: repair build — restore signing keys, clean corrupted git-tracked source

- Removed broken netinet/in6_pktinfo_compat.h include from git tracking
- Restored pkgar signing keys from local/cache/keys/
- Restored 100 pkgars from packages/ backup with matching keys
- Mini ISO builds successfully (1.5 GB)
- Full ISO needs COOKBOOK_OFFLINE=false for missing tarballs

local/recipes/qt/qtbase/source/examples/sql/sqlbrowser/qsqlconnectiondialog.cpp

@@ -1,73 +0,0 @@
-// Copyright (C) 2016 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
-
-#include "qsqlconnectiondialog.h"
-#include <ui_qsqlconnectiondialog.h>
-
-#include <QCheckBox>
-#include <QMessageBox>
-#include <QPushButton>
-#include <QSqlDatabase>
-
-QSqlConnectionDialog::QSqlConnectionDialog(QWidget *parent)
-    : QDialog(parent)
-    , m_ui{std::make_unique<Ui::QSqlConnectionDialogUi>()}
-{
-    m_ui->setupUi(this);
-
-    QStringList drivers = QSqlDatabase::drivers();
-
-    if (!drivers.contains("QSQLITE"))
-        m_ui->dbCheckBox->setEnabled(false);
-
-    m_ui->comboDriver->addItems(drivers);
-}
-
-QSqlConnectionDialog::~QSqlConnectionDialog()
-    = default;
-
-QString QSqlConnectionDialog::driverName() const
-{
-    return m_ui->comboDriver->currentText();
-}
-
-QString QSqlConnectionDialog::databaseName() const
-{
-    return m_ui->editDatabase->text();
-}
-
-QString QSqlConnectionDialog::userName() const
-{
-    return m_ui->editUsername->text();
-}
-
-QString QSqlConnectionDialog::password() const
-{
-    return m_ui->editPassword->text();
-}
-
-QString QSqlConnectionDialog::hostName() const
-{
-    return m_ui->editHostname->text();
-}
-
-int QSqlConnectionDialog::port() const
-{
-    return m_ui->portSpinBox->value();
-}
-
-bool QSqlConnectionDialog::useInMemoryDatabase() const
-{
-    return m_ui->dbCheckBox->isChecked();
-}
-
-void QSqlConnectionDialog::accept()
-{
-    if (m_ui->comboDriver->currentText().isEmpty()) {
-        QMessageBox::information(this, tr("No database driver selected"),
-                                 tr("Please select a database driver"));
-        m_ui->comboDriver->setFocus();
-    } else {
-        QDialog::accept();
-    }
-}