Don't start polling from the GUI for a CLI launch

We can end up missing early computerStateChanged signals.

Fixes #2039

app/gui/main.qml

@@ -51,7 +51,7 @@ ApplicationWindow {
         }
 
         // Display any modal dialogs for configuration warnings
-        if (runConfigChecks) {
+        if (isGuiLaunch) {
             if (SystemProperties.isWow64) {
                 wow64Dialog.open()
             }
@@ -171,6 +171,9 @@ ApplicationWindow {
     }
 
     onVisibleChanged: {
+        // Polling is only managed from the window for a normal GUI launch;
+        // CLI commands (stream/quit/pair) manage it via the ComputerSeeker.
+        if (isGuiLaunch) {
             // When we become invisible while streaming is going on,
             // stop polling immediately.
             if (!visible) {
@@ -191,12 +194,16 @@ ApplicationWindow {
                     pollingActive = true
                 }
             }
+        }
 
         // Poll for gamepad input only when the window is in focus
         SdlGamepadKeyNavigation.notifyWindowFocus(visible && active)
     }
 
     onActiveChanged: {
+        // Polling is only managed from the window for a normal GUI launch;
+        // CLI commands (stream/quit/pair) manage it via the ComputerSeeker.
+        if (isGuiLaunch) {
             if (active) {
                 // Stop the inactivity timer
                 inactivityTimer.stop()
@@ -212,6 +219,7 @@ ApplicationWindow {
                 // if focus does not return within a few minutes.
                 inactivityTimer.restart()
             }
+        }
 
         // Poll for gamepad input only when the window is in focus
         SdlGamepadKeyNavigation.notifyWindowFocus(visible && active)

app/main.cpp

@@ -1034,7 +1034,7 @@ int main(int argc, char *argv[])
 
     if (hasGUI) {
         engine.rootContext()->setContextProperty("initialView", initialView);
-        engine.rootContext()->setContextProperty("runConfigChecks", commandLineParserResult == GlobalCommandLineParser::NormalStartRequested);
+        engine.rootContext()->setContextProperty("isGuiLaunch", commandLineParserResult == GlobalCommandLineParser::NormalStartRequested);
 
         // Load the main.qml file
         engine.load(QUrl(QStringLiteral("qrc:/gui/main.qml")));