Drop Qt Quick Controls and Qt Widgets

The binary now links Core, Gui, Quick and QuickShapes, nothing else.

Qt Widgets was there for one reason, QSystemTrayIcon, so the tray icon is gone
and QApplication is back to QGuiApplication. The cat itself is the whole
interface: right-click or long-press opens the settings window, which carries
the tricks and a quit button. Ctrl+C in the terminal works as well.

The settings window is rebuilt from Qt Quick primitives. AppButton, AppSlider,
AppToggle and SettingsGroup replace the Controls types, keyboard handling and
accessible roles included, and a Flickable with plain positioners replaces
QtQuick.Layouts.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

README.md

@@ -22,10 +22,10 @@ plain Qt 6 / QML project.
 |---|---|
 | `CMakeLists.txt` | `qt_add_executable` + `qt_add_qml_module` (URI `TNCat`), macOS bundle, `.desktop` file on Linux |
 | `src/main.cpp` | Wires `AppSettings` and `CatController` into the QML engine, warns on Wayland |
+| `qml/AppButton.qml`, `qml/AppSlider.qml`, `qml/AppToggle.qml`, `qml/SettingsGroup.qml` | The controls, built from primitives |
 | `src/catcontroller.*` | Mood machine (walk, run, sit, groom, stretch, sleep, love, alert, chase, bat, drink), movement tick, chip chase, coffee break, cursor tracking |
 | `src/appsettings.*` | `QSettings`-backed coat, size, pace, ground line, eye tracking, pet counter |
 | `src/platforminfo.*` | QML singleton `Platform`: platform name plus the X11 escape hatches |
-| `src/traycontroller.*` | Tray icon and menu, silently skipped when the desktop has no tray |
 | `qml/Main.qml` | Non-visual root that picks the window layout for the platform |
 | `qml/CatWindow.qml`, `qml/ChipWindow.qml`, `qml/CupWindow.qml` | One small window each, positioned by the app. X11, macOS, Windows |
 | `qml/OverlayWindow.qml` | One screen-filling click-through window holding both. Wayland |
@@ -56,9 +56,16 @@ cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release
 cmake --build build
 ```
 
-Needs Qt 6.5 or newer. Required modules: Core, Gui, Quick, QuickControls2,
-Widgets. Widgets is only there because `QSystemTrayIcon` needs it for its
-context menu.
+Needs Qt 6.5 or newer. Required modules: Core, Gui, Quick, QuickShapes. There is
+no dependency on Qt Quick Controls and none on Qt Widgets: every control in the
+settings window is built from Qt Quick primitives, and there is no tray icon,
+which is the only thing that pulled Widgets in.
+
+Check what actually got linked with:
+
+```bash
+otool -L build/tncat.app/Contents/MacOS/tncat | grep -o 'Qt[A-Za-z]*\.framework' | sort -u
+```
 
 ## Environment switches
 
@@ -93,9 +100,9 @@ Untested on real hardware so far. What the code already does for that target:
 
 - **X11 today, Wayland later.** Both layouts are in the build; the platform picks
   one at startup.
-- **No tray required.** If the desktop has no status-notifier host, the tray icon
-  is skipped and the cat itself stays the entry point: long-press or right-click
-  opens the settings window.
+- **No tray, no menu bar item.** The cat itself is the whole interface:
+  right-click or long-press opens the settings window. Quit from the button
+  there, with Ctrl+C in the terminal that started it, or by killing the process.
 - **Touch works without hover.** Tap pets the cat, drag picks it up. The blush on
   hover is a mouse-only extra, not a requirement.
 - **Ground line setting.** The cat normally stands on the bottom of the available
@@ -122,5 +129,5 @@ What still needs checking on the actual machine:
 | Click or tap | Pet the cat, it closes its eyes and purrs |
 | Drag | Pick the cat up and put it somewhere else |
 | Hover | Blush and purr wiggle |
-| Double-click or right-click | Settings window |
-| Tray menu | Tricks, nap toggle, settings, quit |
+| Double-click, right-click or long-press | Settings window |
+| Settings window | Coat, size, pace, ground line, habits, tricks, quit |