test(*): Add basic BDD tests

tests/bdd/support/world.ts

@@ -0,0 +1,51 @@
+import { chromium } from 'playwright';
+import type { Browser, Page } from 'playwright';
+import { setDefaultTimeout, setWorldConstructor, World, Before, After, AfterAll } from '@cucumber/cucumber';
+
+setDefaultTimeout(60000); // 60 seconds
+
+let browser: Browser;
+
+class CustomWorld extends World {
+  page!: Page;
+
+  async openPage() {
+    if (!browser) {
+      browser = await chromium.launch({ headless: true });
+    }
+    this.page = await browser.newPage();
+  }
+
+  async closePage() {
+    if (this.page) {
+      await this.page.close();
+    }
+  }
+}
+
+setWorldConstructor(CustomWorld);
+
+Before(async function () {
+  await this.openPage();
+});
+
+// Always clear assessment history for destructive scenarios after page is available
+Before({ tags: '@deleteAssessment or @clearAssessment' }, async function () {
+  if (!this.page) throw new Error('Playwright page not initialized!');
+  await this.page.goto('http://localhost:5173/results');
+  // Clear assessment history to guarantee a clean state
+  await this.page.evaluate(() => localStorage.removeItem('assessmentHistory'));
+});
+
+// Always clear assessment history after every scenario for isolation
+After(async function () {
+  if (this.page) {
+    await this.page.evaluate(() => localStorage.removeItem('assessmentHistory'));
+  }
+});
+
+AfterAll(async function () {
+  if (browser) {
+    await browser.close();
+  }
+});