完善素材管理 UI 交互并修复列表解析与时间选择。

MaterialItem 兼容 Android 缺失字段默认值，优化素材详情/列表/标签布局与上下架开关交互，修复个人空间时间选择器初始值。

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

suixinkan/UI/MaterialManagement/MaterialFormViewController.swift

@@ -972,7 +972,7 @@ private final class MaterialTagEditorView: UIView {
         stack.spacing = 8
         tagsStack.axis = .horizontal
         tagsStack.spacing = 8
-        tagsStack.alignment = .leading
+        tagsStack.alignment = .center
         inputRow.axis = .horizontal
         inputRow.spacing = 8
         textField.font = .systemFont(ofSize: 14)
@@ -1027,6 +1027,8 @@ private final class MaterialTagEditorView: UIView {
             button.backgroundColor = UIColor(hex: 0xEFF6FF)
             button.layer.cornerRadius = 4
             button.contentEdgeInsets = UIEdgeInsets(top: 0, left: 8, bottom: 0, right: 8)
+            button.setContentHuggingPriority(.required, for: .horizontal)
+            button.setContentCompressionResistancePriority(.required, for: .horizontal)
             button.snp.makeConstraints { make in
                 make.height.equalTo(28)
             }
@@ -1035,6 +1037,10 @@ private final class MaterialTagEditorView: UIView {
             }, for: .touchUpInside)
             tagsStack.addArrangedSubview(button)
         }
+        if !tags.isEmpty {
+            // Android Row 中标签按内容宽度排列；尾部弹性占位吸收剩余空间。
+            tagsStack.addArrangedSubview(UIView())
+        }
         tagsStack.isHidden = tags.isEmpty
     }