feat(new-tool): yaml and json converters

src/tools/json-to-yaml-converter/json-to-yaml.e2e.spec.ts

@@ -0,0 +1,19 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Tool - json to yaml', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/json-to-yaml-converter');
+  });
+
+  test('Has correct title', async ({ page }) => {
+    await expect(page).toHaveTitle('JSON to YAML converter - IT Tools');
+  });
+
+  test('json is parsed and output clean yaml', async ({ page }) => {
+    await page.getByTestId('input').fill('{"foo":"bar","list":["item",{"key":"value"}]}');
+
+    const generatedJson = await page.getByTestId('area-content').innerText();
+
+    expect(generatedJson.trim()).toEqual(`foo: bar\nlist:\n  - item\n  - key: value`.trim());
+  });
+});