OmaPhoto 1.0.0: the Linux port of Compositor

A layered image editor for Linux and Omarchy, ported from Compositor
(github.com/robbietilton/Compositor), whose Swift source is its
specification. It reads and writes Compositor's .comp projects.

Packages for Ubuntu, Fedora and Arch come from the release workflow;
scripts/install/ holds one install script per distribution family,
and flake.nix serves NixOS.

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

tests/CompositorUITestsLaunchTests.cpp

@@ -0,0 +1,35 @@
+#include "UI/ProjectWorkspaceView.h"
+#include <QtTest>
+
+class CompositorUITestsLaunchTests : public QObject {
+    Q_OBJECT
+private slots:
+    void testLaunch();
+    void testWindowKeepsItsMinimumSize();
+};
+
+void CompositorUITestsLaunchTests::testLaunch()
+{
+    ProjectWorkspace workspace;
+    ProjectWorkspaceView window(workspace);
+    window.show();
+    QVERIFY(QTest::qWaitForWindowExposed(&window));
+    // Swift titles the window by its project.
+    QCOMPARE(window.windowTitle(), QStringLiteral("Untitled[*]"));
+    QCOMPARE(window.size(), QSize(1180, 780));
+    // The welcome is up: Swift's launch test waits for it.
+    QVERIFY(window.findChild<QWidget *>("createCanvas")->isVisible());
+    QCoreApplication::processEvents();
+    QVERIFY(window.grab().save(QStringLiteral("LaunchScreen.png")));
+}
+
+void CompositorUITestsLaunchTests::testWindowKeepsItsMinimumSize()
+{
+    ProjectWorkspace workspace;
+    ProjectWorkspaceView window(workspace);
+    window.resize(100, 100);
+    QCOMPARE(window.size(), QSize(800, 520));
+}
+
+QTEST_MAIN(CompositorUITestsLaunchTests)
+#include "CompositorUITestsLaunchTests.moc"