feat: Full rework of account management

Complete rewrite of the account management and related systems.
Makes the architecture more modular,
allowing for easier extensions and configurations.

src/identity/interaction/client-credentials/DeleteClientCredentialsHandler.ts

@@ -0,0 +1,32 @@
+import type { EmptyObject } from '../../../util/map/MapUtil';
+import type { AccountStore } from '../account/util/AccountStore';
+import { ensureResource, getRequiredAccount } from '../account/util/AccountUtil';
+import type { JsonRepresentation } from '../InteractionUtil';
+import type { JsonInteractionHandlerInput } from '../JsonInteractionHandler';
+import { JsonInteractionHandler } from '../JsonInteractionHandler';
+import type { ClientCredentialsStore } from './util/ClientCredentialsStore';
+
+/**
+ * Handles the deletion of client credentials tokens.
+ */
+export class DeleteClientCredentialsHandler extends JsonInteractionHandler<EmptyObject> {
+  private readonly accountStore: AccountStore;
+  private readonly clientCredentialsStore: ClientCredentialsStore;
+
+  public constructor(accountStore: AccountStore, clientCredentialsStore: ClientCredentialsStore) {
+    super();
+    this.accountStore = accountStore;
+    this.clientCredentialsStore = clientCredentialsStore;
+  }
+
+  public async handle({ target, accountId }: JsonInteractionHandlerInput): Promise<JsonRepresentation<EmptyObject>> {
+    const account = await getRequiredAccount(this.accountStore, accountId);
+
+    const id = ensureResource(account.clientCredentials, target.path);
+
+    // This also deletes it from the account
+    await this.clientCredentialsStore.delete(id, account);
+
+    return { json: {}};
+  }
+}