Align window chrome with Sway title bars

Adds focused title-bar geometry to the window service and updates the Sway backend to derive frame data more reliably (including parent node fallback and content rect tracking for wrapped/floating views). Window chrome positioning now centers against the actual title bar instead of deco offsets, improving alignment. Also refreshes visual sizing/padding for traffic-light controls and Sway titlebar spacing to match the new chrome metrics.

core/windows/WindowService.cpp

@@ -146,6 +146,16 @@ int WindowService::focusedWindowDecoHeight() const
     return m_focusedWindowDecoHeight;
 }
 
+int WindowService::focusedWindowTitleBarY() const
+{
+    return m_focusedWindowTitleBarY;
+}
+
+int WindowService::focusedWindowTitleBarHeight() const
+{
+    return m_focusedWindowTitleBarHeight;
+}
+
 bool WindowService::focusWindow(const QString &windowId)
 {
     return m_backend->focusWindow(parseWindowId(windowId));
@@ -321,6 +331,8 @@ void WindowService::publishFocusedGeometry(const WindowInfo *focused)
     int decoY = 0;
     int decoWidth = 0;
     int decoHeight = 0;
+    int titleBarY = 0;
+    int titleBarHeight = 0;
     bool fullscreen = false;
 
     if (focused && !focused->minimized) {
@@ -333,6 +345,17 @@ void WindowService::publishFocusedGeometry(const WindowInfo *focused)
         decoWidth = focused->decoWidth;
         decoHeight = focused->decoHeight;
         fullscreen = focused->fullscreen;
+
+        titleBarHeight = focused->decoHeight;
+        if (titleBarHeight <= 0)
+            titleBarHeight = focused->contentY;
+        if (titleBarHeight <= 0)
+            titleBarHeight = 32;
+
+        if (focused->decoHeight > 0 || focused->contentY > 0)
+            titleBarY = focused->y + focused->decoY;
+        else
+            titleBarY = focused->y - titleBarHeight;
     }
 
     if (m_focusedWindowFullscreen != fullscreen) {
@@ -347,7 +370,9 @@ void WindowService::publishFocusedGeometry(const WindowInfo *focused)
         || m_focusedWindowDecoX != decoX
         || m_focusedWindowDecoY != decoY
         || m_focusedWindowDecoWidth != decoWidth
-        || m_focusedWindowDecoHeight != decoHeight) {
+        || m_focusedWindowDecoHeight != decoHeight
+        || m_focusedWindowTitleBarY != titleBarY
+        || m_focusedWindowTitleBarHeight != titleBarHeight) {
         m_focusedWindowX = x;
         m_focusedWindowY = y;
         m_focusedWindowWidth = width;
@@ -356,6 +381,8 @@ void WindowService::publishFocusedGeometry(const WindowInfo *focused)
         m_focusedWindowDecoY = decoY;
         m_focusedWindowDecoWidth = decoWidth;
         m_focusedWindowDecoHeight = decoHeight;
+        m_focusedWindowTitleBarY = titleBarY;
+        m_focusedWindowTitleBarHeight = titleBarHeight;
         emit focusedWindowGeometryChanged();
     }
 }