DTM TRAFFIC, SESSION EVENTS 로그 개선

- Receiver에 expected packet type 필드 제거
- 로그 아래로 쌓기
- Clear 버튼 추가
- Trasmitter 세션에서는 packet report 숨김

electron/services/dtmController.cjs

@@ -189,9 +189,9 @@ const attachEvents = (sessionId, instance) => {
         emitForSession(sessionId, {
             type: 'ended',
             channel: event.channel,
-            packets: event.packets ?? 0,
             mode: event.type,
             data: [...status.lastReceived],
+            ...(typeof event.packets === 'number' ? { packets: event.packets } : {}),
         });
     });
 
@@ -210,6 +210,9 @@ const attachEvents = (sessionId, instance) => {
     });
 
     instance.onTraffic(event => {
+        if (sessionId === 'transmitter' && event.kind === 'packetReport') {
+            return;
+        }
         emitForSession(sessionId, {
             type: 'traffic',
             direction: event.direction,