修复样片详情解析并优化列表上下架交互。

兼容 Android 媒体项 size 字段格式，增强灵活解码容错，并统一样片列表开关确认逻辑与安全区布局。

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

suixinkan/Features/SampleManagement/ViewModels/SampleManagementViewModels.swift

@@ -503,6 +503,7 @@ final class UploadSampleViewModel {
                 guard let self else { return }
                 Task { @MainActor in
                     guard self.uploadedMediaList.indices.contains(index) else { return }
+                    guard self.uploadedMediaList[index].isUploading else { return }
                     self.uploadedMediaList[index].uploadProgress = progress
                     self.uploadedMediaList[index].isUploading = progress < 100
                     self.uploadDialogState = SampleUploadDialogState(
@@ -552,6 +553,7 @@ final class UploadSampleViewModel {
                 guard let self else { return }
                 Task { @MainActor in
                     guard var current = self.coverImage else { return }
+                    guard current.isUploading else { return }
                     current.uploadProgress = progress
                     current.isUploading = progress < 100
                     self.coverImage = current