Rename IfcViewerFull to Bonsai Viewer

Directory src/ifcviewer-full -> src/bonsaiviewer, CMake target
IfcViewerFull -> BonsaiViewer, namespace ifcviewerfull -> bonsaiviewer,
QApplication / window titles / connector path now use the new brand.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/bonsaiviewer/main.cpp

@@ -0,0 +1,81 @@
+// This file was generated with the assistance of an AI coding tool.
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+#include "MainWindow.h"
+#include "ViewerSettings.h"
+#include "components/Style.h"
+
+#include <QApplication>
+#include <QCommandLineParser>
+#include <QFont>
+#include <QFontDatabase>
+#include <QSurfaceFormat>
+
+namespace {
+
+void installUiFont() {
+    const int font_id = QFontDatabase::addApplicationFont(
+        ":/fonts/DMSans-VariableFont_opsz,wght.ttf");
+    QString family;
+    if (font_id >= 0) {
+        const QStringList families = QFontDatabase::applicationFontFamilies(font_id);
+        if (!families.isEmpty()) {
+            family = families.front();
+        }
+    }
+    if (!family.isEmpty()) {
+        QApplication::setFont(QFont(family, 10));
+    }
+}
+
+} // namespace
+
+int main(int argc, char* argv[]) {
+    QApplication app(argc, argv);
+    app.setApplicationName("Bonsai Viewer");
+    app.setOrganizationName("IfcOpenShell");
+
+    QSurfaceFormat fmt;
+    fmt.setVersion(4, 5);
+    fmt.setProfile(QSurfaceFormat::CoreProfile);
+    fmt.setDepthBufferSize(24);
+    fmt.setSwapBehavior(QSurfaceFormat::DoubleBuffer);
+    fmt.setSamples(4);
+    QSurfaceFormat::setDefaultFormat(fmt);
+
+    QCommandLineParser parser;
+    parser.setApplicationDescription("Bonsai Viewer — IfcOpenShell IFC viewer");
+    parser.addHelpOption();
+    parser.process(app);
+
+    installUiFont();
+    const auto applyStyle = [&app]() {
+        app.setStyleSheet(bonsaiviewer::components::style::buildAppStyleSheet());
+    };
+    applyStyle();
+    QObject::connect(&bonsaiviewer::ViewerSettings::instance(),
+                     &bonsaiviewer::ViewerSettings::themeChanged,
+                     &app,
+                     applyStyle);
+
+    bonsaiviewer::shell::MainWindow window;
+    window.show();
+    return app.exec();
+}