chore: logs os_log bout-en-bout (watch sendSample + iPhone liveSample) + hook AUTOSIM

Logger unified (capturable via simctl) côté watch (envoi) et iPhone (réception)
pour valider le pont WCSession. Hook AUTOSIM (env var) démarre le mode test au
lancement, pour validation automatisée sur simulateur. Pont prouvé E2E sur sim
pair iPhone+Watch : HR identiques watch->iPhone.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

ios/App/App/CoachLiveBridge.swift

@@ -14,6 +14,9 @@
 import Foundation
 import Capacitor
 import WatchConnectivity
+import os
+
+private let liveLog = Logger(subsystem: "ch.hypnotruck.coach", category: "live")
 
 @objc(CoachLiveBridgePlugin)
 public class CoachLiveBridgePlugin: CAPPlugin, CAPBridgedPlugin {
@@ -46,6 +49,8 @@ public class CoachLiveBridgePlugin: CAPPlugin, CAPBridgedPlugin {
     }
 
     private func emit(_ sample: [String: Any]) {
+        let hr = (sample["heartRate"] as? Double) ?? -1
+        liveLog.info("liveSample reçu de la Watch hr=\(hr, privacy: .public)")
         CAPLog.print("⚡️ CoachLiveBridge: liveSample reçu de la Watch -> \(sample)")
         DispatchQueue.main.async { [weak self] in
             self?.notifyListeners("liveSample", data: sample)

ios/App/CoachWatch/ConnectivityManager.swift

@@ -1,5 +1,8 @@
 import Foundation
 import WatchConnectivity
+import os
+
+private let connLog = Logger(subsystem: "ch.hypnotruck.coach.watchkitapp", category: "connectivity")
 
 /// Envoie les samples de séance vers l'iPhone.
 /// - `sendMessage` quand l'iPhone est joignable (temps réel)
@@ -23,6 +26,8 @@ final class ConnectivityManager: NSObject, ObservableObject {
     func sendSample(_ payload: [String: Any]) {
         queue.async {
             let session = WCSession.default
+            let hr = (payload["heartRate"] as? Double) ?? -1
+            connLog.info("sendSample activated=\(session.activationState == .activated, privacy: .public) reachable=\(session.isReachable, privacy: .public) hr=\(hr, privacy: .public)")
             guard session.activationState == .activated else {
                 self.buffer.append(payload)
                 return

ios/App/CoachWatch/ContentView.swift

@@ -5,10 +5,19 @@ struct ContentView: View {
     @EnvironmentObject private var workout: WorkoutManager
 
     var body: some View {
-        if workout.isRunning {
-            LiveWorkoutView()
-        } else {
-            ActivityPickerView()
+        Group {
+            if workout.isRunning {
+                LiveWorkoutView()
+            } else {
+                ActivityPickerView()
+            }
+        }
+        .task {
+            // Déclenchement auto du mode test (validation simulateur) :
+            // SIMCTL_CHILD_AUTOSIM=1 xcrun simctl launch …
+            if ProcessInfo.processInfo.environment["AUTOSIM"] == "1" {
+                workout.startSimulation()
+            }
         }
     }
 }