按源仓库内容呈现，保留标题、案例、代码、表格、链接以及原文引用的演示图片。
Search these docs to answer questions about background task APIs.
Always include:
backgroundtasks-index.md - Framework overview, task typesbgtaskscheduler.md - Task scheduling and registration
prisma-labs-devAPI reference: App Intents. Query for Siri, Shortcuts, Spotlight integration, exposing app functionality.
prisma-labs-devIndex of Apple developer documentation for iOS, macOS, and related frameworks. Use when looking up what APIs exist in a framework, browsing available documentation, or deciding what docs to fetch. Covers SwiftUI, UIKit, Core Animation (QuartzCore), XCTest, HealthKit, Combine, SwiftData, and more.
prisma-labs-devAPI reference: Core Animation (QuartzCore). Query for CALayer, CAAnimation, CABasicAnimation, CAKeyframeAnimation, CASpringAnimation, CATransaction, CAShapeLayer, CAGradientLayer, CAEmitterLayer, CATransform3D, CADisplayLink.
prisma-labs-devAPI reference: EventKit. Query for EKEventStore, EKEvent, EKReminder, calendar access.