✨ feat: enhance admin API helpers with CRUD operations for collections and seed data management

- Added functions for creating, updating, deleting, and listing collection entries in admin API.
- Introduced seed data management for consistent test content across tests.
- Updated global setup and teardown processes to ensure seeded content is created and cleaned up.
- Refactored existing tests to utilize seeded content for improved reliability and maintainability.

tests/e2e/fixtures.ts

@@ -1,34 +1,9 @@
 import { test as base, expect, type Page } from "@playwright/test"
-import { ensureTestUser, type TestUserCredentials } from "../api/helpers/test-user"
 import { attachConsoleMonitor } from "../fixtures/console-monitor"
 
 const API_BASE = "/api"
 
-/**
- * Shared E2E test fixtures.
- *
- * Worker-scoped:
- * - `testUser` – persistent test user (created/reused once per worker)
- *
- * Test-scoped:
- * - `authedPage` – Page with logged-in user (token injection via sessionStorage)
- * - `accessToken` – raw JWT access token
- */
-type E2eWorkerFixtures = {
-    testUser: TestUserCredentials
-}
-
-type E2eFixtures = {
-    authedPage: Page
-    accessToken: string
-}
-
-export const test = base.extend<E2eFixtures, E2eWorkerFixtures>({
-    /**
-     * Override page fixture: BrowserSync keeps a WebSocket open permanently,
-     * preventing "load" and "networkidle" from resolving. We default all
-     * navigation methods to "domcontentloaded".
-     */
+export const test = base.extend({
     page: async ({ page }, use) => {
         const monitor = attachConsoleMonitor(page)
 
@@ -47,61 +22,8 @@ export const test = base.extend<E2eFixtures, E2eWorkerFixtures>({
         await use(page)
         monitor.assertNoErrors()
     },
-
-    // Worker-scoped: create/reuse test user once per worker
-    testUser: [
-        async ({ playwright }, use) => {
-            const baseURL = process.env.CODING_URL || "https://localhost:3000"
-            const user = await ensureTestUser(baseURL)
-            await use(user)
-        },
-        { scope: "worker" },
-    ],
-
-    accessToken: async ({ testUser }, use) => {
-        await use(testUser.accessToken)
-    },
-
-    // Test-scoped: Page with logged-in user via sessionStorage token injection
-    authedPage: async ({ page, testUser, baseURL }, use) => {
-        // Navigate to home so domain is set for sessionStorage
-        await page.goto("/", { waitUntil: "domcontentloaded" })
-        await page.waitForLoadState("domcontentloaded")
-
-        // Inject auth token into sessionStorage (adapt key names to your app)
-        await page.evaluate(
-            ({ token, user }) => {
-                sessionStorage.setItem("auth_token", token)
-                sessionStorage.setItem(
-                    "auth_user",
-                    JSON.stringify({
-                        email: user.email,
-                        firstName: user.firstName,
-                        lastName: user.lastName,
-                    })
-                )
-            },
-            {
-                token: testUser.accessToken,
-                user: testUser,
-            }
-        )
-
-        // Reload so the app reads the token from sessionStorage
-        await page.reload({ waitUntil: "domcontentloaded" })
-        await page.waitForLoadState("domcontentloaded")
-        await expect(page.locator("#appContainer")).not.toBeEmpty({ timeout: 15000 })
-
-        await use(page)
-    },
 })
 
-// ── Helpers ──────────────────────────────────────────────────────────────────
-
-/**
- * Wait for the SPA to be ready (appContainer rendered).
- * Returns the detected language prefix from the URL.
- */
 export async function waitForSpaReady(page: Page): Promise<string> {
     await page.waitForLoadState("domcontentloaded")
     await expect(page.locator("#appContainer")).not.toBeEmpty({ timeout: 15000 })
@@ -110,9 +32,6 @@ export async function waitForSpaReady(page: Page): Promise<string> {
     return match?.[1] || "de"
 }
 
-/**
- * Navigate to a route, prepending the current language prefix.
- */
 export async function navigateToRoute(page: Page, routePath: string): Promise<void> {
     const url = page.url()
     const match = url.match(/\/([a-z]{2})(\/|$)/)
@@ -123,9 +42,6 @@ export async function navigateToRoute(page: Page, routePath: string): Promise<vo
     await expect(page.locator("#appContainer")).not.toBeEmpty({ timeout: 15000 })
 }
 
-/**
- * Click an SPA link and verify no full page reload occurred.
- */
 export async function clickSpaLink(page: Page, linkSelector: string): Promise<void> {
     await page.evaluate(() => {
         ;(window as any).__spa_navigation_marker = true