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/UI/SampleManagement/UploadSampleViewController.swift

@@ -138,7 +138,7 @@ final class UploadSampleViewController: SampleBaseViewController {
             make.trailing.equalToSuperview().inset(15)
         }
         scrollView.snp.makeConstraints { make in
-            make.top.equalToSuperview()
+            make.top.equalTo(view.safeAreaLayoutGuide)
             make.leading.trailing.equalTo(view.safeAreaLayoutGuide)
             make.bottom.equalTo(bottomBar.snp.top)
         }
@@ -698,6 +698,10 @@ private final class SampleUploadThumbView: UIControl {
         deleteButton.layer.cornerRadius = 10
         playIcon.tintColor = .white
         playIcon.isHidden = true
+        [imageView, addCircle, addIcon, textLabel, playIcon].forEach {
+            $0.isUserInteractionEnabled = false
+        }
+        accessibilityLabel = mediaType == .image ? "上传图片" : "上传视频"
 
         addSubview(imageView)
         addSubview(addCircle)
@@ -828,6 +832,10 @@ private final class SampleCoverUploadView: UIControl {
         hintLabel.font = .systemFont(ofSize: 12)
         hintLabel.textColor = UIColor(hex: 0xB6BECA)
         hintLabel.textAlignment = .center
+        [imageView, addCircle, addIcon, titleLabel, hintLabel].forEach {
+            $0.isUserInteractionEnabled = false
+        }
+        accessibilityLabel = "上传封面图片"
         deleteButton.setImage(UIImage(named: "material_ic_clear"), for: .normal)
         deleteButton.tintColor = .white
         deleteButton.backgroundColor = UIColor.black.withAlphaComponent(0.6)