Add .prettierrc.json and refactor test files for improved formatting consistency:

- Introduced `.prettierrc.json` to enforce consistent code formatting across the project.
- Updated unit and e2e test files to address formatting issues, improve readability, and ensure alignment with the new Prettier configuration.

tests/e2e/release/release.live-smoke.spec.ts

@@ -1,19 +1,13 @@
 import { expect, test } from "@playwright/test";
 import { loginAsOperator, loginAsUser } from "../fixtures/authHelpers";
-import {
-  attachPageHealthGuards,
-  expectBodyHasContent,
-  expectOneVisible,
-  requiredEnv,
-  settlePage,
-} from "./helpers";
+import { attachPageHealthGuards, expectBodyHasContent, expectOneVisible, requiredEnv, settlePage } from "./helpers";
 
 const liveSmokeEnabled = Boolean(
-  process.env.PLAYWRIGHT_BASE_URL
-  && process.env.PLAYWRIGHT_USER_CUSTOMER_NUMBER
-  && process.env.PLAYWRIGHT_USER_PASSWORD
-  && process.env.PLAYWRIGHT_OPERATOR_USER_ID
-  && process.env.PLAYWRIGHT_OPERATOR_PASSWORD,
+  process.env.PLAYWRIGHT_BASE_URL &&
+    process.env.PLAYWRIGHT_USER_CUSTOMER_NUMBER &&
+    process.env.PLAYWRIGHT_USER_PASSWORD &&
+    process.env.PLAYWRIGHT_OPERATOR_USER_ID &&
+    process.env.PLAYWRIGHT_OPERATOR_PASSWORD
 );
 
 function getLiveSettings() {
@@ -84,10 +78,7 @@ test.describe("Live smoke release gate", () => {
     await page.goto(`/admin/${departmentId}/modules/pos`);
     await settlePage(page);
     await expect(page).toHaveURL(new RegExp(`/admin/${departmentId}/modules/pos(?:\\?.*)?$`));
-    await expectOneVisible([
-      page.getByTestId("pos-step-1"),
-      page.getByTestId("pos-mobile-step-1-shell"),
-    ]);
+    await expectOneVisible([page.getByTestId("pos-step-1"), page.getByTestId("pos-mobile-step-1-shell")]);
 
     await guards.expectHealthy();
     guards.dispose();