[push/opt-in-prompts] Implement push notifications client integration

Build the full client half of docs/api/push-notifications-integration-guide.md:
OS permission + APNs device-token registration and pipeline wiring, profile
notifications/biometric-login toggles on the Ver Perfil screen reflecting
server truth, order-tracking opt-in fallback prompt, profile-cache refresh
on every mutation, a Notification Service Extension for rich/image push,
the Push Notifications capability, targeting-attributes sync, campaign open
tracking, and tap-to-order deep linking with foreground notification display.

Sources/PediFoods/Views/Auth/OtpView.swift

@@ -250,6 +250,7 @@ struct OtpView: View {
                     appState.session.jwt = response.result?.token
                     let hasServerAddress = hydrateUserState(from: response.result?.customer)
                     routeAfterLogin(hasServerAddress: hasServerAddress)
+                    Task { await PushNotificationCoordinator.shared.syncCustomerAttributes() }
                 }
             } catch {
                 await MainActor.run {
@@ -281,6 +282,8 @@ struct OtpView: View {
             appState.profile.email = customer.email
             appState.profile.phone = customer.phoneNumber ?? ""
             appState.profile.profilePicture = customer.profilePicture ?? ""
+            appState.profile.notificationsEnabled = customer.notificationsEnabled ?? false
+            appState.profile.faceIdEnabled = customer.faceIdEnabled ?? false
             appState.favorites.storeIds = Set(customer.favorites ?? [])
             SessionStateStore.setActiveUserKey(
                 SessionStateStore.makeUserKey(profileId: customer.id, email: customer.email)