移除 Core 层 OTG 相机实现，保留旅拍有线传图 UI 与本地照片上传能力。

将本地存储与上传编排下沉到 Features/TravelAlbum，删除 USB/PTP 相关代码与测试。

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

suixinkan/Features/TravelAlbum/ViewModels/TravelAlbumViewModels.swift

@@ -441,7 +441,7 @@ final class WiredCameraTransferViewModel: ObservableObject {
     @Published var errorMessage: String?
 
     let context: WiredTransferContext
-    private let pipeline: CameraTransferPipeline
+    private let pipeline = WiredCameraTransferPipeline()
     private var photoStore: WiredTransferPhotoStore?
     private var userIDProvider: (() -> String)?
     private var downloadScope: CameraDownloadStorage.Scope?
@@ -457,12 +457,8 @@ final class WiredCameraTransferViewModel: ObservableObject {
     private var isLeavingPage = false
 
     /// 初始化有线传图 ViewModel。
-    init(
-        context: WiredTransferContext,
-        cameraService: any CameraServiceProtocol
-    ) {
+    init(context: WiredTransferContext) {
         self.context = context
-        self.pipeline = CameraTransferPipeline(cameraService: cameraService)
     }
 
     /// 配置上传 Sink 并启动相机连接。
@@ -473,16 +469,11 @@ final class WiredCameraTransferViewModel: ObservableObject {
         accountContext: AccountContext
     ) async {
         isLeavingPage = false
-        pipeline.attachToUI(
-            onConnectionStateChange: { [weak self] state in
-                self?.handleConnectionStateChange(state)
-            },
-            onTasksUpdated: { [weak self] tasks in
-                Task { @MainActor in
-                    await self?.applyPipelineTasks(tasks)
-                }
+        pipeline.attachToUI { [weak self] tasks in
+            Task { @MainActor in
+                await self?.applyPipelineTasks(tasks)
             }
-        )
+        }
 
         let accountCachePrefix = accountContext.accountCachePrefix ?? "guest_"
         let currentDownloadScope = CameraDownloadStorage.Scope(
@@ -511,19 +502,10 @@ final class WiredCameraTransferViewModel: ObservableObject {
         pipeline.configure(uploadSink: uploader, uploadEnabled: autoUpload, downloadScope: currentDownloadScope)
         refreshDeviceStorageInfo()
         loadPersistedPhotos()
+        connectionState = .disconnected
 
-        do {
-            await pipeline.connect()
-            connectionState = pipeline.connectionState
-            wasConnected = connectionState.isConnected
-
-            while !Task.isCancelled {
-                try await Task.sleep(nanoseconds: 1_000_000_000)
-            }
-        } catch is CancellationError {
-            // 用户返回或 task 取消。
-        } catch {
-            errorMessage = error.localizedDescription
+        while !Task.isCancelled {
+            try? await Task.sleep(nanoseconds: 1_000_000_000)
         }
         detachFromUI()
     }
@@ -600,25 +582,20 @@ final class WiredCameraTransferViewModel: ObservableObject {
         errorMessage = nil
     }
 
-    /// 刷新相机文件列表；未连接时重新搜索 USB 相机。
+    /// 刷新相机文件列表（OTG 能力已移除，仅刷新本地持久化记录）。
     func refreshCameraFiles() async {
-        if connectionState.isConnected {
-            guard !isRefreshingCameraFiles else { return }
-            isRefreshingCameraFiles = true
-            defer { isRefreshingCameraFiles = false }
-            await pipeline.syncExistingPhotos()
-            return
-        }
-        await restartCameraSearch()
+        guard !isRefreshingCameraFiles else { return }
+        isRefreshingCameraFiles = true
+        defer { isRefreshingCameraFiles = false }
+        loadPersistedPhotos()
     }
 
-    /// 重新搜索 USB 相机。
+    /// 重新搜索相机（OTG 能力已移除，保持未连接状态）。
     func restartCameraSearch() async {
-        guard !connectionState.isConnected, !isSearchingCamera else { return }
+        guard !isSearchingCamera else { return }
         isSearchingCamera = true
         defer { isSearchingCamera = false }
-        await pipeline.restartCameraDiscovery()
-        connectionState = pipeline.connectionState
+        connectionState = .disconnected
     }
 
     /// 批量上传按钮点击（三态：进入勾选 / 上传选中 / 取消选择）。