Content Scanning View (#5831)

* implement a MediaView to delegate at the view level the usage of the content scanner service, to determine how to render the media.

* fix for a small design mismatch

* fix for greedy error state

* updated naming

* just making some screenshot that have been affected by a string change on Localazy

* pr suggestions + updated strings

ElementX/Sources/Mocks/ContentScannerServiceMock.swift

@@ -0,0 +1,29 @@
+//
+// Copyright 2026 Element Creations 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
+
+struct ContentScannerServiceMockConfiguration {
+    /// The verdict reported for every source: `true` when safe, `false` when unsafe, or `nil` to
+    /// never resolve the scan so that the scanning state remains visible.
+    var scanResult: Bool?
+}
+
+extension ContentScannerServiceMock {
+    convenience init(_ configuration: ContentScannerServiceMockConfiguration) {
+        self.init()
+        
+        scanResultFromSourceReturnValue = configuration.scanResult
+        loadScanResultFromSourceClosure = { _ in
+            guard let scanResult = configuration.scanResult else {
+                try? await Task.sleep(for: .seconds(3600))
+                return .failure(.failedScanning)
+            }
+            return .success(scanResult)
+        }
+    }
+}

ElementX/Sources/Mocks/UserSessionMock.swift

@@ -11,6 +11,7 @@ import Foundation
 
 struct UserSessionMockConfiguration {
     var clientProxy: ClientProxyProtocol = ClientProxyMock(.init())
+    var contentScannerService: ContentScannerServiceProtocol?
 }
 
 @MainActor extension UserSessionMock {
@@ -20,6 +21,7 @@ struct UserSessionMockConfiguration {
         clientProxy = configuration.clientProxy
         mediaProvider = MediaProviderMock(.init())
         voiceMessageMediaManager = VoiceMessageMediaManagerMock()
+        contentScannerService = configuration.contentScannerService
         
         sessionSecurityStatePublisher = CurrentValueSubject<SessionSecurityState, Never>(.init(verificationState: .verified, recoveryState: .enabled)).asCurrentValuePublisher()