Add support for ACI safety numbers behind a feature flag

ts/types/Storage.d.ts

@@ -74,6 +74,7 @@ export type StorageAccessType = {
   hasRegisterSupportForUnauthenticatedDelivery: boolean;
   hasSetMyStoriesPrivacy: boolean;
   hasCompletedUsernameOnboarding: boolean;
+  hasCompletedSafetyNumberOnboarding: boolean;
   hasViewedOnboardingStory: boolean;
   hasStoriesDisabled: boolean;
   storyViewReceiptsEnabled: boolean;
@@ -128,6 +129,7 @@ export type StorageAccessType = {
   'preferred-audio-output-device': AudioDevice;
   previousAudioDeviceModule: AudioDeviceModule;
   remoteConfig: RemoteConfigType;
+  serverTimeSkew: number;
   unidentifiedDeliveryIndicators: boolean;
   groupCredentials: ReadonlyArray<GroupCredentialType>;
   lastReceivedAtCounter: number;

ts/types/safetyNumber.ts

@@ -0,0 +1,19 @@
+// Copyright 2023 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+export enum SafetyNumberMode {
+  E164 = 'E164',
+  ACIAndE164 = 'ACIAndE164',
+  ACI = 'ACI',
+}
+
+export enum SafetyNumberIdentifierType {
+  ACIIdentifier = 'ACIIdentifier',
+  E164Identifier = 'E164Identifier',
+}
+
+export type SafetyNumberType = Readonly<{
+  identifierType: SafetyNumberIdentifierType;
+  numberBlocks: ReadonlyArray<string>;
+  qrData: Uint8Array;
+}>;

ts/types/support.ts

@@ -7,3 +7,5 @@ export const UNSUPPORTED_OS_URL =
   'https://support.signal.org/hc/articles/5109141421850';
 export const LINK_SIGNAL_DESKTOP =
   'https://support.signal.org/hc/articles/360007320451#desktop_multiple_device';
+export const SAFETY_NUMBER_MIGRATION_URL =
+  'https://support.signal.org/hc/en-us/articles/360007060632';