Add SpaceRoomCell & Space…ProxyProtocols and use them on the SpaceListScreen. (#4404)

ElementX/Sources/Mocks/SpaceServiceProxyMock.swift

@@ -0,0 +1,29 @@
+//
+// Copyright 2025 New Vector Ltd.
+//
+// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+// Please see LICENSE files in the repository root for full details.
+//
+
+import Foundation
+import MatrixRustSDK
+
+extension SpaceServiceProxyMock {
+    struct Configuration {
+        var joinedSpaces: [SpaceRoomProxyProtocol] = []
+        var spaceRoomLists: [String: SpaceRoomListProxyMock] = [:]
+    }
+    
+    convenience init(_ configuration: Configuration) {
+        self.init()
+        
+        joinedSpacesPublisher = .init(configuration.joinedSpaces)
+        spaceRoomListForClosure = { spaceRoom in
+            if let spaceRoomList = configuration.spaceRoomLists[spaceRoom.id] {
+                .success(spaceRoomList)
+            } else {
+                .failure(.sdkError(ClientProxyMockError.generic))
+            }
+        }
+    }
+}