feat(chat): 유저 크리에이터 DM을 추가한다

SodaLive/Sources/V2/CreatorChannel/CreatorChannelView.swift

@@ -234,7 +234,11 @@ struct CreatorChannelView: View {
     @ViewBuilder
     private var headerSection: some View {
         if let creator = viewModel.response?.creator {
-            CreatorChannelHeaderSection(creator: creator, onTapTalk: handleTalkTap)
+            CreatorChannelHeaderSection(
+                creator: creator,
+                onTapTalk: handleTalkTap,
+                onTapDm: handleDmTap
+            )
         }
     }
     
@@ -544,6 +548,18 @@ struct CreatorChannelView: View {
         startChat(characterId: characterId)
     }
 
+    private func handleDmTap() {
+        guard let creatorId = viewModel.response?.creator.creatorId, creatorId > 0 else { return }
+
+        let trimmed = token.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !trimmed.isEmpty else {
+            AppState.shared.setAppStep(step: .login)
+            return
+        }
+
+        AppState.shared.setAppStep(step: .userCreatorChatCreator(creatorId: creatorId))
+    }
+
     private func startChat(characterId: Int) {
         viewModel.createChatRoom(characterId: characterId) { chatRoomId in
             AppState.shared.setAppStep(step: .chatRoom(id: chatRoomId))