chore/#95 :: RoomService Data->Domain으로 변경

ConnectionRepository에서 하나만 들고 있어도 되겠다고 판단해 RoomService를 도메인으로 옮겨 ConnectionRepository에서 알 수 있도록 했습니다.
Co-Authored-By: Kiyoung <[email protected]>

PhotoGether/DataLayer/PhotoGetherData/PhotoGetherData/ServiceImpl/RoomServiceImpl.swift

@@ -1,5 +1,6 @@
 import Foundation
 import PhotoGetherNetwork
+import PhotoGetherDomainInterface
 
 public final class RoomServiceImpl: RoomService {
     private let decoder = JSONDecoder()
@@ -10,8 +11,9 @@ public final class RoomServiceImpl: RoomService {
         self.webSocketClient = webSocketClient
     }
 
-    public func send(request: any WebSocketRequestable) {
-        guard let data = request.toData(encoder: encoder) else {
+    public func send(request: Encodable) {
+        guard let request = request as? (any WebSocketRequestable),
+                let data = request.toData(encoder: encoder) else {
             debugPrint("방 생성 요청 데이터 인코딩 실패: \(request)")
             return
         }

PhotoGether/DomainLayer/PhotoGetherDomain/PhotoGetherDomainInterface/Service/RoomService.swift

@@ -0,0 +1,5 @@
+import Foundation
+
+public protocol RoomService {
+    func send(request: Encodable)
+}