Fix playback, API races, tray, MPRIS, and search UX; add tests

- Correct history/resume next-previous context and list index resync after reload
- Abort stale RadioBrowser requests and suppress error banners when cache satisfies loads
- Reset local search filter on page changes and debounce compact-mode API search
- Move system tray to C++ (QSystemTrayIcon) for reliable Wayland context menus
- Harden MPRIS registration and metadata updates for Plasma media widgets
- Add playback and API race unit tests
- Drop unused KF6 Kirigami, I18n, and CoreAddons build dependencies
- Update packaging docs, CI, and PKGBUILD to match Qt-only requirements

CMakeLists.txt

@@ -12,16 +12,15 @@ set(CMAKE_AUTOUIC ON)
 # Qt6
 find_package(Qt6 REQUIRED COMPONENTS Core DBus Quick QuickControls2 Widgets LinguistTools Multimedia)
 
-# KDE Frameworks
-find_package(KF6Kirigami REQUIRED)
-find_package(KF6I18n REQUIRED)
-find_package(KF6CoreAddons REQUIRED)
-
-
-
 # Add src directory
 add_subdirectory(src)
 
+option(BEARWAVE_BUILD_TESTS "Build BearWave unit tests" ON)
+if(BEARWAVE_BUILD_TESTS)
+    enable_testing()
+    add_subdirectory(tests)
+endif()
+
 # Configure and install desktop file with correct binary path
 configure_file(
     ${CMAKE_CURRENT_SOURCE_DIR}/de.nerdbear.bearwave.desktop.in