feat(ios): plugin Capacitor CoachLiveBridge (Phase 3) — relais WCSession -> /live

CAPPlugin + CAPBridgedPlugin (jsName CoachLiveBridge). Active WCSession au load(),
reçoit didReceiveMessage (temps réel) + didReceiveUserInfo (lot bufferisé) et
relaie au JS via notifyListeners("liveSample"). Enregistré dans
MainViewController.capacitorDidLoad(). Méthode getStatus pour debug JS. Build OK.

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

ios/App/App.xcodeproj/project.pbxproj

@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		01468471ECA28EA66AFE2D6C /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0EB6C76F68679844EC72178F /* Foundation.framework */; };
+		21B242F8E61FB07C476C477C /* CoachLiveBridge.swift in Sources */ = {isa = PBXBuildFile; fileRef = A9DF3346C49A690C3C3DF2F3 /* CoachLiveBridge.swift */; };
 		290D0F17978B7EF3DDB3A792 /* ContentView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8A06CDFF5B4F7852B6329862 /* ContentView.swift */; };
 		2FAD9763203C412B000D30F8 /* config.xml in Resources */ = {isa = PBXBuildFile; fileRef = 2FAD9762203C412B000D30F8 /* config.xml */; };
 		3E6740C521EF14892687BCF7 /* CoachWatch.app in Embed Watch Content */ = {isa = PBXBuildFile; fileRef = 2517374227A4072A4D6AFC15 /* CoachWatch.app */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
@@ -71,6 +72,7 @@
 		8AC9C9B9971F55027D227A06 /* WorkoutManager.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = WorkoutManager.swift; sourceTree = "<group>"; };
 		958DCC722DB07C7200EA8C5F /* debug.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = debug.xcconfig; path = ../debug.xcconfig; sourceTree = SOURCE_ROOT; };
 		A420239FC6D065C8A599B61C /* ConnectivityManager.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = ConnectivityManager.swift; sourceTree = "<group>"; };
+		A9DF3346C49A690C3C3DF2F3 /* CoachLiveBridge.swift */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = sourcecode.swift; path = CoachLiveBridge.swift; sourceTree = "<group>"; };
 		C0AC4A07811751FB78AA0002 /* CoachAuth.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CoachAuth.swift; sourceTree = "<group>"; };
 		D09B589FA572B2C14E8CD835 /* CoachWatch.entitlements */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.plist.entitlements; path = CoachWatch.entitlements; sourceTree = "<group>"; };
 		D1BD5B1990CF3F2B9C5D0002 /* CoachWorkoutKit.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CoachWorkoutKit.swift; sourceTree = "<group>"; };
@@ -144,6 +146,7 @@
 				504EC3131FED79650016851F /* Info.plist */,
 				2FAD9762203C412B000D30F8 /* config.xml */,
 				50B271D01FEDC1A000F3C39B /* public */,
+				A9DF3346C49A690C3C3DF2F3 /* CoachLiveBridge.swift */,
 			);
 			path = App;
 			sourceTree = "<group>";
@@ -284,6 +287,7 @@
 				F1ABCDEF0123456789AB0001 /* CoachHealthRoute.swift in Sources */,
 				88F28EB12FBB330E00E8306E /* CoachWorkoutObserver.swift in Sources */,
 				E2CE6C2AA1DF4F3CAD6E0001 /* MainViewController.swift in Sources */,
+				21B242F8E61FB07C476C477C /* CoachLiveBridge.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

ios/App/App/CoachLiveBridge.swift

@@ -0,0 +1,80 @@
+// CoachLiveBridge.swift
+// Plugin Capacitor (côté iPhone) : reçoit les samples de séance poussés par
+// l'app watchOS CoachWatch via WatchConnectivity et les relaie au JS via
+// l'event "liveSample" (consommé par la page web /live).
+//
+// Enregistrement : MainViewController.capacitorDidLoad() ->
+//   bridge?.registerPluginInstance(CoachLiveBridgePlugin())
+//
+// Usage JS :
+//   const CoachLiveBridge = registerPlugin('CoachLiveBridge');
+//   CoachLiveBridge.addListener('liveSample', (s) => { ... });
+//   // s.heartRate, s.activeEnergyKcal, s.distanceMeters, s.elapsedSec, s.ts
+
+import Foundation
+import Capacitor
+import WatchConnectivity
+
+@objc(CoachLiveBridgePlugin)
+public class CoachLiveBridgePlugin: CAPPlugin, CAPBridgedPlugin {
+    public let identifier = "CoachLiveBridgePlugin"
+    public let jsName = "CoachLiveBridge"
+    public let pluginMethods: [CAPPluginMethod] = [
+        CAPPluginMethod(name: "getStatus", returnType: CAPPluginReturnPromise)
+    ]
+
+    override public func load() {
+        super.load()
+        guard WCSession.isSupported() else {
+            CAPLog.print("⚡️ CoachLiveBridge: WCSession non supporté sur cet appareil")
+            return
+        }
+        let session = WCSession.default
+        session.delegate = self
+        session.activate()
+    }
+
+    @objc func getStatus(_ call: CAPPluginCall) {
+        let session = WCSession.default
+        call.resolve([
+            "supported": WCSession.isSupported(),
+            "activated": session.activationState == .activated,
+            "paired": session.isPaired,
+            "watchAppInstalled": session.isWatchAppInstalled,
+            "reachable": session.isReachable
+        ])
+    }
+
+    private func emit(_ sample: [String: Any]) {
+        DispatchQueue.main.async { [weak self] in
+            self?.notifyListeners("liveSample", data: sample)
+        }
+    }
+}
+
+extension CoachLiveBridgePlugin: WCSessionDelegate {
+    public func session(_ session: WCSession,
+                        activationDidCompleteWith activationState: WCSessionActivationState,
+                        error: Error?) {}
+
+    public func sessionDidBecomeInactive(_ session: WCSession) {}
+
+    public func sessionDidDeactivate(_ session: WCSession) {
+        // Réactiver pour les sessions futures (ex. changement d'Apple Watch).
+        WCSession.default.activate()
+    }
+
+    // Temps réel : un sample envoyé via sendMessage.
+    public func session(_ session: WCSession, didReceiveMessage message: [String: Any]) {
+        emit(message)
+    }
+
+    // Livraison différée : lot de samples envoyé via transferUserInfo.
+    public func session(_ session: WCSession, didReceiveUserInfo userInfo: [String: Any] = [:]) {
+        if let samples = userInfo["samples"] as? [[String: Any]] {
+            for sample in samples { emit(sample) }
+        } else {
+            emit(userInfo)
+        }
+    }
+}

ios/App/App/MainViewController.swift

@@ -18,6 +18,10 @@ class MainViewController: CAPBridgeViewController {
         // Plugin natif observer HealthKit — détecte fin de séance Watch et
         // push notif locale "🎉 Séance terminée" (cf. CoachWorkoutObserver.swift).
         bridge?.registerPluginInstance(CoachWorkoutObserverPlugin())
+        // Plugin natif live workout — reçoit les samples temps réel de l'app
+        // watchOS CoachWatch via WatchConnectivity, relaie au JS (event
+        // "liveSample") pour la page /live (cf. CoachLiveBridge.swift).
+        bridge?.registerPluginInstance(CoachLiveBridgePlugin())
     }
 
     override func viewDidLoad() {