feat(chat-room) 채팅방

- 텍스트 메시지 UI 적용

SodaLive/Sources/Chat/Talk/Room/ChatRoomViewModel.swift

@@ -15,8 +15,53 @@ final class ChatRoomViewModel: ObservableObject {
     @Published var errorMessage: String = ""
     @Published var isShowPopup = false
     
+    @Published private(set) var characterProfileUrl: String = ""
+    @Published private(set) var characterName: String = "Character Name"
+    @Published private(set) var characterType: CharacterType = .Character
+    
+    // MARK: - Message State
+    @Published var messageText: String = ""
+    @Published private(set) var messages: [ServerChatMessage] = [
+        ServerChatMessage(
+            messageId: 1,
+            message: "(만약에) 멈춰 인프피",
+            profileImageUrl: "",
+            mine: true,
+            createdAt: Date().currentTimeMillis(),
+            messageType: "text",
+            imageUrl: nil,
+            price: nil,
+            hasAccess: true
+        ),
+        ServerChatMessage(
+            messageId: 2,
+            message: "(언제부턴가) 너랑 노는게 제일 재밌고\n너랑 이야기 하는게 제일 신나더라,\n앞으로도 그럴 것 같아❤️",
+            profileImageUrl: "https://example.com/profile.jpg",
+            mine: false,
+            createdAt: Date().currentTimeMillis(),
+            messageType: "text",
+            imageUrl: nil,
+            price: nil,
+            hasAccess: true
+        )
+    ]
+    
     // MARK: - Private
     private let userRepository = UserRepository()
     private let repository = ChatRoomRepository()
     private var subscription = Set<AnyCancellable>()
+    
+    // MARK: - Actions
+    @MainActor
+    func sendMessage() {
+        guard !messageText.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty else {
+            return
+        }
+        
+        let message = messageText.trimmingCharacters(in: .whitespacesAndNewlines)
+        messageText = ""
+        
+        // TODO: 실제 메시지 전송 로직 구현
+        DEBUG_LOG("메시지 전송: \(message)")
+    }
 }