Fix APP property typing

KeyBorad/KeyBorad/APP/AppKeyboardPage.cpp

@@ -95,13 +95,13 @@ void App_KeyboardPage::App_Func_CreateLayout()
     p_CardLayout->setSpacing(14);
 
     QLabel* const p_Title = new QLabel(QStringLiteral("Keyboard"), p_Card);
-    p_Title->setProperty("role", "title");
+    p_Title->setProperty("role", QStringLiteral("title"));
     p_CardLayout->addWidget(p_Title);
 
     QLabel* const p_Body = new QLabel(
         QStringLiteral("Start from one button, then grow into the whole keypad layout."),
         p_Card);
-    p_Body->setProperty("role", "body");
+    p_Body->setProperty("role", QStringLiteral("body"));
     p_Body->setWordWrap(true);
     p_CardLayout->addWidget(p_Body);
 

KeyBorad/KeyBorad/APP/AppSettingsPage.cpp

@@ -26,13 +26,13 @@ App_SettingsPage::App_SettingsPage(QWidget* p_Parent)
     p_CardLayout->setSpacing(14);
 
     QLabel* const p_Title = new QLabel(QStringLiteral("Settings"), p_Card);
-    p_Title->setProperty("role", "title");
+    p_Title->setProperty("role", QStringLiteral("title"));
     p_CardLayout->addWidget(p_Title);
 
     QLabel* const p_Body = new QLabel(
         QStringLiteral("Use this page to present transport status and the latest function result."),
         p_Card);
-    p_Body->setProperty("role", "body");
+    p_Body->setProperty("role", QStringLiteral("body"));
     p_Body->setWordWrap(true);
     p_CardLayout->addWidget(p_Body);
 

docs/host_app_rebuild.md

@@ -79,3 +79,19 @@ Implemented behavior:
 - start handshake on launch
 - poll the logic layer with a timer
 - refresh settings page texts from logic state
+
+### Node 6: Qt property typing fix
+
+Files updated in this step:
+
+- `KeyBorad/KeyBorad/APP/AppKeyboardPage.cpp`
+- `KeyBorad/KeyBorad/APP/AppSettingsPage.cpp`
+
+Design notes:
+
+- keep widget property values explicit under MSVC + Qt
+- avoid relying on implicit conversion from string literal to `QVariant`
+
+Implemented behavior:
+
+- replace raw `"title"` / `"body"` property values with `QStringLiteral(...)`