Migrate test/index.ts to use dynamic database imports

Replace static databaseUtil import with dynamic import pattern for test context.
Add comprehensive JSDoc documentation and improve code formatting.
Maintains functionality while removing static dependency.

src/test/index.ts

@@ -1,12 +1,18 @@
 import axios from "axios";
 import * as didJwt from "did-jwt";
-import * as databaseUtil from "../db/databaseUtil";
 import { SERVICE_ID } from "../libs/endorserServer";
 import { deriveAddress, newIdentifier } from "../libs/crypto";
 import { logger } from "../utils/logger";
 import { AppString } from "../constants/app";
+
 /**
  * Get User #0 to sign & submit a RegisterAction for the user's activeDid.
+ *
+ * This test function demonstrates the registration process for a user with the endorser server.
+ * It creates a verifiable credential claim and submits it via JWT to the endorser API.
+ *
+ * @returns Promise<void> - Completes when registration is successful
+ * @throws Error if registration fails or database access fails
  */
 export async function testServerRegisterUser() {
   const testUser0Mnem =
@@ -16,7 +22,11 @@ export async function testServerRegisterUser() {
 
   const identity0 = newIdentifier(addr, publicHex, privateHex, deriPath);
 
-  const settings = await databaseUtil.retrieveSettingsForActiveAccount();
+  // Use dynamic import for database access in test context
+  const { retrieveSettingsForActiveAccount } = await import(
+    "@/db/databaseUtil"
+  );
+  const settings = await retrieveSettingsForActiveAccount();
 
   // Make a claim
   const vcClaim = {
@@ -26,6 +36,7 @@ export async function testServerRegisterUser() {
     object: SERVICE_ID,
     participant: { did: settings.activeDid },
   };
+
   // Make a payload for the claim
   const vcPayload = {
     sub: "RegisterAction",
@@ -35,11 +46,13 @@ export async function testServerRegisterUser() {
       credentialSubject: vcClaim,
     },
   };
+
   // create a signature using private key of identity
   // eslint-disable-next-line
   const privateKeyHex: string = identity0.keys[0].privateKeyHex!;
   const signer = await didJwt.SimpleSigner(privateKeyHex);
   const alg = undefined;
+
   // create a JWT for the request
   const vcJwt: string = await didJwt.createJWT(vcPayload, {
     alg: alg,
@@ -48,7 +61,6 @@ export async function testServerRegisterUser() {
   });
 
   // Make the xhr request payload
-
   const payload = JSON.stringify({ jwtEncoded: vcJwt });
   const endorserApiServer =
     settings.apiServer || AppString.TEST_ENDORSER_API_SERVER;