feat(workout): 新增锻炼结束监听和个性化通知功能

实现了iOS HealthKit锻炼数据实时监听，当用户完成锻炼时自动发送个性化鼓励通知。包括锻炼类型筛选、时间范围控制、用户偏好设置等完整功能，并提供了测试工具和详细文档。

ios/OutLive/HealthKitManager.swift

@@ -10,17 +10,14 @@ import React
 import HealthKit
 
 @objc(HealthKitManager)
-class HealthKitManager: NSObject, RCTBridgeModule {
+class HealthKitManager: RCTEventEmitter {
   
   private let healthStore = HKHealthStore()
   
-  static func moduleName() -> String! {
+  override static func moduleName() -> String! {
     return "HealthKitManager"
   }
   
-  static func requiresMainQueueSetup() -> Bool {
-    return true
-  }
   
   // MARK: - Types We Care About
   
@@ -1703,4 +1700,95 @@ class HealthKitManager: NSObject, RCTBridgeModule {
     return description.lowercased()
   }
 
+// MARK: - Workout Observer Methods
+
+private var workoutObserverQuery: HKObserverQuery?
+
+@objc
+func startWorkoutObserver(
+  _ resolver: @escaping RCTPromiseResolveBlock,
+  rejecter: @escaping RCTPromiseRejectBlock
+) {
+  guard HKHealthStore.isHealthDataAvailable() else {
+    rejecter("HEALTHKIT_NOT_AVAILABLE", "HealthKit is not available on this device", nil)
+    return
+  }
+  
+  // 如果已经有观察者在运行，先停止它
+  if let existingQuery = workoutObserverQuery {
+    healthStore.stop(existingQuery)
+    workoutObserverQuery = nil
+  }
+  
+  // 创建锻炼数据观察者
+  let workoutType = ReadTypes.workoutType
+  
+  workoutObserverQuery = HKObserverQuery(sampleType: workoutType, predicate: nil) { [weak self] (query, completionHandler, error) in
+    if let error = error {
+      print("Workout observer error: \(error.localizedDescription)")
+      completionHandler()
+      return
+    }
+    
+    print("Workout data updated, sending event to React Native")
+    // 发送事件到 React Native
+    self?.sendWorkoutUpdateEvent()
+    completionHandler()
+  }
+  
+  // 启用后台传递
+  healthStore.enableBackgroundDelivery(for: workoutType, frequency: .immediate) { (success, error) in
+    if let error = error {
+      print("Failed to enable background delivery for workouts: \(error.localizedDescription)")
+    } else {
+      print("Background delivery for workouts enabled successfully")
+    }
+  }
+  
+  // 执行查询
+  healthStore.execute(workoutObserverQuery!)
+  
+  resolver(["success": true])
+}
+
+@objc
+func stopWorkoutObserver(
+  _ resolver: @escaping RCTPromiseResolveBlock,
+  rejecter: @escaping RCTPromiseRejectBlock
+) {
+  if let query = workoutObserverQuery {
+    healthStore.stop(query)
+    workoutObserverQuery = nil
+    
+    // 禁用后台传递
+    healthStore.disableBackgroundDelivery(for: ReadTypes.workoutType) { (success, error) in
+      if let error = error {
+        print("Failed to disable background delivery for workouts: \(error.localizedDescription)")
+      }
+    }
+    
+    resolver(["success": true])
+  } else {
+    resolver(["success": true]) // 即使没有查询在运行也返回成功
+  }
+}
+
+private func sendWorkoutUpdateEvent() {
+  // 使用 RCTEventEmitter 发送事件
+  sendEvent(withName: "workoutUpdate", body: [
+    "timestamp": Date().timeIntervalSince1970,
+    "type": "workout_completed"
+  ])
+}
+
+// MARK: - RCTEventEmitter Overrides
+
+override func supportedEvents() -> [String]! {
+  return ["workoutUpdate"]
+}
+
+override static func requiresMainQueueSetup() -> Bool {
+  return true
+}
+
 } // end class