[PM-5537] Biometric State Service (#7761)

* Create state for biometric client key halves

* Move enc string util to central utils

* Provide biometric state through service

* Use biometric state to track client key half

* Create migration for client key half

* Ensure client key half is removed on logout

* Remove account data for client key half

* Remove unnecessary key definition likes

* Remove moved state from account

* Fix null-conditional operator failure

* Simplify migration

* Remove lame test

* Fix test type

* Add migrator

* Prefer userKey when legacy not needed

* Fix tests

libs/common/spec/utils.ts

@@ -3,6 +3,9 @@ import { Observable } from "rxjs";
 
 import { EncString } from "@bitwarden/common/platform/models/domain/enc-string";
 
+import { EncryptionType } from "../src/platform/enums";
+import { Utils } from "../src/platform/misc/utils";
+
 function newGuid() {
   return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
     const r = (Math.random() * 16) | 0;
@@ -29,6 +32,11 @@ export function mockEnc(s: string): MockProxy<EncString> {
   return mocked;
 }
 
+export function makeEncString(data?: string) {
+  data ??= Utils.newGuid();
+  return new EncString(EncryptionType.AesCbc256_HmacSha256_B64, data, "test", "test");
+}
+
 export function makeStaticByteArray(length: number, start = 0) {
   const arr = new Uint8Array(length);
   for (let i = 0; i < length; i++) {