Don't save log levels set from the command line

--loglevel, -d and -v are applied to the channels directly, and the next
config save wrote them to [Log], permanently replacing the user's levels.
The other command line options avoid this with DoNotSaveSetting.

The debugger had the same problem and a flag for it. Generalize that one
(NotifyChannelsChangedByDebugger -> DoNotSaveChannels) and set it here too.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

Core/Debugger/WebSocket/LogConfigSubscriber.cpp

@@ -121,7 +121,7 @@ void WebSocketLogChannelSet(DebuggerRequest &req) {
 
 		// These are meant as temporary, session-only diagnostic tweaks - make sure they never
 		// get written back over the user's actual saved log settings.
-		g_logManager.NotifyChannelsChangedByDebugger();
+		g_logManager.DoNotSaveChannels();
 		if (hasLevel)
 			g_logManager.SetLogLevel(type, level);
 		if (hasEnabled)