按账号与相册隔离相机下载目录，并同步更新传输管道与测试。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan/Core/CameraTransfer/CameraTransferPipeline.swift

@@ -16,6 +16,7 @@ final class CameraTransferPipeline {
     private let cameraService: any CameraServiceProtocol
     private var uploadSink: (any CameraAssetUploadSink)?
     private var uploadEnabled = true
+    private var downloadScope = CameraDownloadStorage.Scope(accountKey: "unscoped", albumID: 0)
     private var activeUploadAssetIDs: Set<String> = []
     private var autoUploadEligibleAssetIDs: Set<String> = []
     private var pendingDeferredNotifyTask: Task<Void, Never>?
@@ -36,10 +37,17 @@ final class CameraTransferPipeline {
         }
     }
 
-    /// 配置上传 Sink 与是否自动上传。
-    func configure(uploadSink: (any CameraAssetUploadSink)?, uploadEnabled: Bool) {
+    /// 配置上传 Sink、自动上传开关与可选下载作用域。
+    func configure(
+        uploadSink: (any CameraAssetUploadSink)?,
+        uploadEnabled: Bool,
+        downloadScope: CameraDownloadStorage.Scope? = nil
+    ) {
         self.uploadSink = uploadSink
         self.uploadEnabled = uploadEnabled
+        if let downloadScope {
+            self.downloadScope = downloadScope
+        }
     }
 
     /// 启动相机连接。
@@ -243,10 +251,10 @@ final class CameraTransferPipeline {
             let localURL = try await cameraService.downloadAsset(resolvedAsset)
             let destination: URL
 
-            if CameraDownloadStorage.isInDownloadsDirectory(localURL) {
+            if CameraDownloadStorage.isInOriginalsDirectory(localURL, scope: downloadScope) {
                 destination = localURL
             } else {
-                destination = CameraDownloadStorage.uniqueLocalURL(for: resolvedAsset.filename)
+                destination = CameraDownloadStorage.uniqueLocalURL(for: resolvedAsset.filename, scope: downloadScope)
                 if FileManager.default.fileExists(atPath: destination.path) {
                     try FileManager.default.removeItem(at: destination)
                 }