Add hub package

ts/audit/classes.auditlog.ts

@@ -0,0 +1,19 @@
+import * as plugins from '../plugins.js';
+
+export class AuditLog {
+  private receipts: plugins.shxInterfaces.data.IAuditReceipt[] = [];
+
+  public appendReceipt(receiptArg: Omit<plugins.shxInterfaces.data.IAuditReceipt, 'id' | 'createdAt'>) {
+    const receipt: plugins.shxInterfaces.data.IAuditReceipt = {
+      id: `receipt:${Date.now()}:${Math.random().toString(36).slice(2)}`,
+      createdAt: new Date().toISOString(),
+      ...receiptArg,
+    };
+    this.receipts.unshift(receipt);
+    return receipt;
+  }
+
+  public listReceipts() {
+    return [...this.receipts];
+  }
+}