Add "double-press to copy status" toggle + document the spoken-status changes (held for next release)

Preferences General-tab checkbox "Double-press the speak-status hotkey to copy the status to the
clipboard" (Alt+C), machine-wide (AppConfig.DoublePressStatusToCopy), on by default. When off, a
double press just reads the status again. SpeakStatusLine reads the flag only when the timing already
qualifies, so a normal single press never touches the config. Manual's speak-status section now
covers the line-by-line read, GB totals, and the double-press copy + its toggle.

Held for the next release.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/RemSound.App/MainForm.cs

@@ -3360,13 +3360,16 @@ public sealed class MainForm : Form
     private void SpeakStatusLine()
     {
         var now = DateTime.UtcNow;
-        var doublePress = now - lastSpeakStatusPressUtc <= TimeSpan.FromMilliseconds(600);
+        var withinDoublePressWindow = now - lastSpeakStatusPressUtc <= TimeSpan.FromMilliseconds(600);
         lastSpeakStatusPressUtc = now;
 
         var text = statusReadout.Text;
         if (string.IsNullOrWhiteSpace(text)) text = "No status information available.";
 
-        if (doublePress)
+        // Double press copies to the clipboard — but only if the user has left that on (Preferences →
+        // General). Read the flag only when the timing already qualifies, so a normal single press never
+        // touches the config file.
+        if (withinDoublePressWindow && AppConfig.Load().DoublePressStatusToCopy)
         {
             // Second quick press: copy the status to the clipboard so it can be shared. Clipboard access
             // needs the UI thread — this runs on it (the hotkey is marshalled onto the owner form).

src/RemSound.App/PreferencesDialog.cs

@@ -210,6 +210,15 @@ internal sealed class PreferencesDialog : Form
         AutoSize = true,
     };
 
+    // Screen-reader convenience (machine-wide, AppConfig). On by default. When off, a double press of
+    // the speak-status hotkey just reads the status again rather than copying it.
+    private readonly AccessibleCheckBox doublePressCopyBox = new()
+    {
+        Text = "Double-press the speak-status hotkey to copy the status to the clipboard (Alt+&C)",
+        AccessibleName = "Double-press the speak-status hotkey to copy the status to the clipboard",
+        AutoSize = true,
+    };
+
     // Update settings — startup-check checkbox, frequency dropdown, manual check button,
     // silent-install checkbox. Sits above the logging row so users meet it during setup; the
     // canonical order in the dialog is "things related to the program staying current" before
@@ -566,6 +575,15 @@ internal sealed class PreferencesDialog : Form
         silentlyInstallUpdatesBox.Checked = cfgForLoad.SilentlyInstallUpdates;
         upnpEnabledBox.Checked = cfgForLoad.UpnpEnabled;
 
+        // Double-press-the-speak-status-hotkey-to-copy toggle (machine-wide, AppConfig). On by default.
+        doublePressCopyBox.Checked = cfgForLoad.DoublePressStatusToCopy;
+        doublePressCopyBox.CheckedChanged += (_, _) =>
+        {
+            var cfg = AppConfig.Load();
+            cfg.DoublePressStatusToCopy = doublePressCopyBox.Checked;
+            try { cfg.Save(); } catch { /* harmless — choice just won't survive a restart */ }
+        };
+
         checkForUpdatesOnStartupBox.CheckedChanged += (_, _) =>
         {
             var cfg = AppConfig.Load();
@@ -798,7 +816,7 @@ internal sealed class PreferencesDialog : Form
         // is a field (declared above) so OnShown can focus it when the dialog opens. Logging is its
         // own tab (2026-06-19); the two logging controls moved off the General tab to lead it.
         tabs.TabPages.Add(MakeTab("General",
-            browseProfilesFolderButton, acceptRemoteVolumeBox, upnpEnabledBox, upnpStatusLabel));
+            browseProfilesFolderButton, acceptRemoteVolumeBox, upnpEnabledBox, upnpStatusLabel, doublePressCopyBox));
         tabs.TabPages.Add(MakeTab("Audio cues", cueGroup));
         tabs.TabPages.Add(MakeTab("Startup behaviour",
             startMinimisedBox, startWithUserBox, startWithProfileBox, startupListPanel));

src/RemSound.Core/AppConfig.cs

@@ -196,6 +196,11 @@ public sealed class AppConfig
     public bool? UntickOthersWhenUsingDefaultOutput { get; set; }
     public bool? UntickOthersWhenUsingDefaultInput { get; set; }
 
+    /// <summary>If true, pressing the "speak status" global hotkey twice in quick succession copies the
+    /// status text to the clipboard (instead of just reading it again). On by default; the user can turn
+    /// it off on the Preferences General tab. Machine-wide; a screen-reader convenience (Andre's idea).</summary>
+    public bool DoublePressStatusToCopy { get; set; } = true;
+
     /// <summary>If non-null and a profile with this title exists, RemSound skips the
     /// startup profile picker and loads this profile directly. Combine with
     /// <see cref="StartMinimised"/> + the Windows auto-start registry entry