Fix 28 issues from deep audit and UI audit + redesign changes

Deep audit (issues 2-14):
- Add missing WCSession handlers for applicationContext and userInfo
- Fix BoundedFIFOQueue race condition with serial dispatch queue
- Fix timer race condition with main thread guarantee
- Fix watch pause state divergence — phone is now source of truth
- Fix wrong notification posted on logout (createdNewWorkout → userLoggedOut)
- Fix POST status check to accept any 2xx (was exact match)
- Fix @StateObject → @ObservedObject for injected viewModel
- Add pull-to-refresh to CompletedWorkoutsView
- Fix typos: RefreshUserInfoFetcable, defualtPackageModle
- Replace string concatenation with interpolation
- Replace 6 @StateObject with @ObservedObject for BridgeModule.shared
- Replace 7 hardcoded AVPlayer URLs with BaseURLs.currentBaseURL

UI audit (issues 1-15):
- Fix GeometryReader eating VStack space — replaced with .overlay
- Fix refreshable continuation resuming before fetch completes
- Remove duplicate @State workouts — derive from DataStore
- Decouple leaf views from BridgeModule (pass discrete values)
- Convert selectedIds from Array to Set for O(1) lookups
- Extract .sorted() from var body into computed properties
- Move search filter out of ForEach render loop
- Replace import SwiftUI with import Combine in non-UI classes
- Mark all @State properties private
- Extract L/R exercise auto-add logic to WorkoutViewModel
- Use enumerated() instead of .indices in ForEach
- Make AddSupersetView frame flexible instead of fixed 300pt
- Hoist Set construction out of per-exercise filter loop
- Move ViewModel network fetch from init to load()

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

iphone/Werkout_ios/BridgeModule+Watch.swift

@@ -39,17 +39,21 @@ extension BridgeModule: WCSessionDelegate {
     }
     
     private func flushQueuedWatchMessages() {
-        let queuedMessages = queuedWatchMessages.dequeueAll()
-        guard queuedMessages.isEmpty == false else {
-            return
+        watchMessageQueue.sync {
+            let queuedMessages = queuedWatchMessages.dequeueAll()
+            guard queuedMessages.isEmpty == false else {
+                return
+            }
+            queuedMessages.forEach { send($0) }
         }
-        queuedMessages.forEach { send($0) }
     }
 
     private func enqueueWatchMessage(_ data: Data) {
-        let droppedCount = queuedWatchMessages.enqueue(data)
-        if droppedCount > 0 {
-            watchBridgeLogger.warning("Dropping oldest queued watch message to enforce queue cap")
+        watchMessageQueue.sync {
+            let droppedCount = queuedWatchMessages.enqueue(data)
+            if droppedCount > 0 {
+                watchBridgeLogger.warning("Dropping oldest queued watch message to enforce queue cap")
+            }
         }
     }
     
@@ -90,7 +94,7 @@ extension BridgeModule: WCSessionDelegate {
         }
     }
     
-    func session(_ session: WCSession, didReceiveMessageData messageData: Data) {
+    func dataToAction(messageData: Data) {
         do {
             let model = try WatchPayloadValidation.decode(WatchActions.self, from: messageData)
             DispatchQueue.main.async {
@@ -119,6 +123,10 @@ extension BridgeModule: WCSessionDelegate {
             watchBridgeLogger.error("Rejected WatchActions payload: \(error.localizedDescription, privacy: .public)")
         }
     }
+
+    func session(_ session: WCSession, didReceiveMessageData messageData: Data) {
+        dataToAction(messageData: messageData)
+    }
     
     
     func session(_ session: WCSession,
@@ -158,6 +166,22 @@ extension BridgeModule: WCSessionDelegate {
     func sessionDidDeactivate(_ session: WCSession) {
         session.activate()
     }
+
+    func session(_ session: WCSession, didReceiveApplicationContext applicationContext: [String : Any]) {
+        if let messageData = applicationContext["package"] as? Data {
+            DispatchQueue.main.async {
+                self.dataToAction(messageData: messageData)
+            }
+        }
+    }
+
+    func session(_ session: WCSession, didReceiveUserInfo userInfo: [String : Any] = [:]) {
+        if let messageData = userInfo["package"] as? Data {
+            DispatchQueue.main.async {
+                self.dataToAction(messageData: messageData)
+            }
+        }
+    }
 #endif
     func send(_ data: Data) {
         guard WCSession.isSupported() else {