ITMS-91053: Missing API declaration

1. 添加PrivacyInfo.xcprivacy

File → New → File → App Privacy

2. 格式

3. 已知对应关系

• NSPrivacyAccessedAPICategoryFileTimestamp

3B52.1: Files provided to app by user, per documentation：File Timestamp

• NSPrivacyAccessedAPICategoryDiskSpace

E174.1: Write or delete file on-device, per documentation：Disk Space

• NSPrivacyAccessedAPICategorySystemBootTime

35F9.1: Measure time on-device, per documentation：System Boot Time

• NSPrivacyAccessedAPICategoryUserDefaults

CA92.1: Access info from same app, per documentation：User Defaults