feat(live-room): 라이브룸 채팅 삭제 기능 구현

SodaLive/Sources/Live/Room/V2/LiveRoomViewV2.swift

@@ -30,6 +30,8 @@ struct LiveRoomViewV2: View {
     @State private var wavePhase: CGFloat = 0
     @State private var isShowFollowNotifyDialog: Bool = false
     @State private var guestFollowButtonTypeOverride: FollowButtonImageType? = nil
+    @State private var selectedChatForDelete: LiveRoomNormalChat? = nil
+    @State private var isShowChatDeleteDialog: Bool = false
     let heartWaveTimer = Timer.publish(every: 1/60, on: .main, in: .common).autoconnect()
 
     private var appliedKeyboardHeight: CGFloat {
@@ -213,11 +215,19 @@ struct LiveRoomViewV2: View {
                                         scrollObservableView
                                         
                                         if !viewModel.changeIsAdult || UserDefaults.bool(forKey: .auth) {
-                                            LiveRoomChatView(messages: viewModel.messages) {
-                                                if $0 != UserDefaults.int(forKey: .userId) {
-                                                    viewModel.getUserProfile(userId: $0)
+                                            LiveRoomChatView(
+                                                messages: viewModel.messages,
+                                                isCreator: liveRoomInfo.creatorId == UserDefaults.int(forKey: .userId),
+                                                getUserProfile: {
+                                                    if $0 != UserDefaults.int(forKey: .userId) {
+                                                        viewModel.getUserProfile(userId: $0)
+                                                    }
+                                                },
+                                                onLongPressChat: { chat in
+                                                    selectedChatForDelete = chat
+                                                    isShowChatDeleteDialog = true
                                                 }
-                                            }
+                                            )
                                             .frame(width: screenSize().width)
                                             .rotationEffect(Angle(degrees: 180))
                                             .valueChanged(value: viewModel.messageChangeFlag) { _ in
@@ -605,6 +615,24 @@ struct LiveRoomViewV2: View {
                         }
                     )
                 }
+
+                if isShowChatDeleteDialog, let selectedChat = selectedChatForDelete {
+                    SodaDialog(
+                        title: I18n.LiveRoom.chatDeleteTitle,
+                        desc: "\(selectedChat.nickname): \(selectedChat.chat)",
+                        confirmButtonTitle: I18n.Common.delete,
+                        confirmButtonAction: {
+                            viewModel.deleteChat(selectedChat)
+                            selectedChatForDelete = nil
+                            isShowChatDeleteDialog = false
+                        },
+                        cancelButtonTitle: I18n.Common.cancel,
+                        cancelButtonAction: {
+                            selectedChatForDelete = nil
+                            isShowChatDeleteDialog = false
+                        }
+                    )
+                }
             }
             
             ZStack {
@@ -979,6 +1007,11 @@ struct LiveRoomViewV2: View {
                 guestFollowButtonTypeOverride = nil
             }
         }
+        .onChange(of: isShowChatDeleteDialog) { isShowing in
+            if isShowing {
+                hideKeyboard()
+            }
+        }
     }
     
     private func estimatedHeight(for text: String, width: CGFloat) -> CGFloat {