fix(phone-app): Huawei Wear Engine package visibility queries and auth permission prompt #40

What to build

Fix the persistent "Permission Required" / Unauthorized state when connecting to Huawei Wear Engine on Android 11+ devices.

Root Cause

1. Missing <queries> in AndroidManifest.xml: Android 11+ (API 30+) enforces package visibility restrictions. Because com.huawei.health and com.huawei.health.action.WEAR_ENGINE_SERVICE are not declared in <queries>, the Wear Engine SDK fails to discover the Huawei Health service (WearEngine_WearEngineClientInner: implicitIntent List are null).
2. Missing AuthClient.requestPermission flow: HuaweiWearEngineService currently only calls authClient.checkPermission(Permission.DEVICE_MANAGER). It never invokes authClient.requestPermission(...) to trigger the system/Huawei Health authorization dialog on the phone, causing checkPermission to stay permanently false even after tapping "Retry".

Acceptance criteria

• Add <queries> declaration in AndroidManifest.xml for package com.huawei.health and intent action com.huawei.health.action.WEAR_ENGINE_SERVICE.
• Implement requestPermission flow in WearEngineService / HuaweiWearEngineService invoking AuthClient.requestPermission(AuthCallback, Permission.DEVICE_MANAGER).
• Update MainActivity / MainViewModel to trigger the permission request dialog when unauthorized and user taps Connect Watch / Retry.
• Handle AuthCallback.onOk (transition to checking connection / connected) and AuthCallback.onCancel (inform user with clear retry guidance).
• Unit tests for HuaweiWearEngineService verifying requestPermission success and failure flows.

Blocked by

• None (can start immediately)