[PM-6146] generator history (#8497)

* introduce `GeneratorHistoryService` abstraction
* implement generator history service with `LocalGeneratorHistoryService` 
* cache decrypted data using `ReplaySubject` instead of `DerivedState`
* move Jsonification from `DataPacker` to `SecretClassifier` because the classifier 
  is the only component that has full type information. The data packer still handles 
  stringification.

libs/common/src/tools/generator/history/options.ts

@@ -0,0 +1,10 @@
+/** Kinds of credentials that can be stored by the history service */
+export type GeneratorCategory = "password" | "passphrase";
+
+/** Configuration options for the history service */
+export type HistoryServiceOptions = {
+  /** Total number of records retained across all types.
+   *  @remarks Setting this to 0 or less disables history completely.
+   * */
+  maxTotal: number;
+};