Stabilize iOS/watchOS/tvOS apps and add cross-platform audit remediation

docs/step11_watch_regression_and_architecture.md

@@ -0,0 +1,40 @@
+# Step 11 Watch Regression + Architecture Cleanup
+
+## Scope
+
+Executed in requested order:
+
+1. `#2` Focused watch/phone disconnect-reconnect regression coverage.
+2. `#3` Architecture cleanup to reduce shared cross-target coupling.
+
+## #2 Regression Work
+
+- Added shared queue primitive:
+  - `SharedCore/Sources/SharedCore/BoundedFIFOQueue.swift`
+- Added regression tests for disconnect/reconnect replay and overflow behavior:
+  - `SharedCore/Tests/SharedCoreWatchOSTests/BoundedFIFOQueueTests.swift`
+- Wired iOS watch bridge queueing to shared queue:
+  - `iphone/Werkout_ios/BridgeModule.swift`
+  - `iphone/Werkout_ios/BridgeModule+Watch.swift`
+- Wired watch sender queueing to shared queue:
+  - `iphone/Werkout_watch Watch App/WatchMainViewModel+WCSessionDelegate.swift`
+
+## #3 Architecture Cleanup
+
+- Replaced ad-hoc notification wiring with a shared typed notification constant:
+  - `SharedCore/Sources/SharedCore/AppNotifications.swift`
+- Updated consumers to use shared constant:
+  - `iphone/Werkout_ios/UserStore.swift`
+  - `iphone/Werkout_ios/Werkout_iosApp.swift`
+  - `iphone/Werkout_ios/Views/CreateWorkout/CreateViewModels.swift`
+  - `iphone/Werkout_ios/Views/AllWorkouts/AllWorkoutsView.swift`
+- Removed iOS-only notification extension that created cross-target coupling:
+  - `iphone/Werkout_ios/Extensions.swift`
+
+## Validation
+
+- `./scripts/smoke/smoke_all.sh` passed:
+  - token scan
+  - SharedCore tests (including new queue tests)
+  - iOS/watchOS/tvOS builds
+