feat: add Kirigami app skeleton with libmpv playback

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CMakeLists.txt

@@ -0,0 +1,31 @@
+cmake_minimum_required(VERSION 3.25)
+
+project(qtpotato VERSION 0.1.0 LANGUAGES CXX)
+
+set(QT_MIN_VERSION "6.8.0")
+set(KF_MIN_VERSION "6.10.0")
+
+find_package(ECM ${KF_MIN_VERSION} REQUIRED NO_MODULE)
+set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
+
+include(KDEInstallDirs)
+include(KDECMakeSettings)
+include(KDECompilerSettings NO_POLICY_SCOPE)
+include(ECMQmlModule)
+include(FeatureSummary)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+find_package(Qt6 ${QT_MIN_VERSION} REQUIRED COMPONENTS Core Gui Qml Quick QuickControls2 Widgets)
+find_package(KF6 ${KF_MIN_VERSION} REQUIRED COMPONENTS Kirigami I18n CoreAddons Crash)
+find_package(MpvQt 1.0 REQUIRED)
+
+find_package(KF6KirigamiAddons 1.0)
+set_package_properties(KF6KirigamiAddons PROPERTIES
+    TYPE RUNTIME
+    PURPOSE "FormCard About page")
+
+add_subdirectory(src)
+
+feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)