归档增加标题并统一分隔符

Note/ClipInboxViewController.swift

@@ -88,12 +88,25 @@ class ClipInboxViewController: UIViewController {
             return
         }
 
-        let archivedText = clips.map(\.text).joined(separator: "\n\n---\n\n")
+        let title = self.archiveTitle()
+        let itemsText = clips.map { "\($0.text)\n\n---" }.joined(separator: "\n\n")
+        let archivedText = "\(title)\n\n\(itemsText)"
         let viewController = FormatNoteViewController()
         viewController.initialText = archivedText
         navigationController?.pushViewController(viewController, animated: true)
     }
 
+    private func archiveTitle() -> String {
+        let dateFormatter = DateFormatter()
+        dateFormatter.locale = Locale(identifier: "zh_CN")
+        dateFormatter.dateFormat = "yyyy年MM月dd日"
+        let dateString = dateFormatter.string(from: Date())
+        let weekdays = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"]
+        let weekdayIndex = Calendar.current.component(.weekday, from: Date()) - 1
+        let weekday = (weekdayIndex >= 0 && weekdayIndex < weekdays.count) ? weekdays[weekdayIndex] : ""
+        return "【读书摘抄】\(dateString) \(weekday)"
+    }
+
     private func setupEmptyLabel() {
         emptyLabel = UILabel()
         emptyLabel.translatesAutoresizingMaskIntoConstraints = false