fix: 화상회의 로비 입장/링크복사 버튼 순서 변경

입장 버튼을 맨 왼쪽으로, 그다음 링크복사 순으로 배치

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/src/components/meeting/MeetingLobby.vue

@@ -168,15 +168,6 @@ async function copyInvite(room: ApiMeetingRoom) {
           </div>
         </div>
         <div class="rr-actions">
-          <button
-            type="button"
-            class="btn rr-invite"
-            :class="{ copied: copiedCode === r.code }"
-            :title="copiedCode === r.code ? '복사됨!' : '초대 링크 복사'"
-            @click="copyInvite(r)"
-          >
-            <MeetingIcon :name="copiedCode === r.code ? 'check' : 'link'" />
-          </button>
           <button
             v-if="r.canJoin"
             type="button"
@@ -194,6 +185,15 @@ async function copyInvite(room: ApiMeetingRoom) {
           >
             <MeetingIcon name="lock" />권한 없음
           </button>
+          <button
+            type="button"
+            class="btn rr-invite"
+            :class="{ copied: copiedCode === r.code }"
+            :title="copiedCode === r.code ? '복사됨!' : '초대 링크 복사'"
+            @click="copyInvite(r)"
+          >
+            <MeetingIcon :name="copiedCode === r.code ? 'check' : 'link'" />
+          </button>
           <button
             v-if="r.isHost"
             type="button"