✨ 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/global-setup.ts

@@ -1,21 +1,10 @@
-/**
- * Playwright Global Setup
- *
- * Runs once before all tests. Use this to:
- * - Seed test data via API action hooks
- * - Create test users
- * - Verify the dev environment is accessible
- *
- * Customize the setup_testing action call for your project,
- * or remove it if not needed.
- */
 import { request } from "@playwright/test"
-import { API_BASE } from "./fixtures/test-constants"
+import { ensureSeededTestContent } from "./api/helpers/seed-data"
+import { TEST_BASE_URL } from "./fixtures/test-constants"
 
 async function globalSetup() {
-    const baseURL = process.env.CODING_URL || "https://localhost:3000"
+    const baseURL = TEST_BASE_URL
 
-    // Verify dev environment is reachable
     const ctx = await request.newContext({
         baseURL,
         ignoreHTTPSErrors: true,
@@ -27,20 +16,23 @@ async function globalSetup() {
     try {
         const res = await ctx.get("/")
         if (!res.ok()) {
-            console.warn(`⚠️ Dev environment at ${baseURL} returned ${res.status()}`)
+            throw new Error(`Dev environment at ${baseURL} returned ${res.status()}`)
         } else {
-            console.log(`✅ Dev environment reachable at ${baseURL}`)
+            console.log(`Playwright setup: dev environment reachable at ${baseURL}`)
         }
 
-        // Uncomment and adapt for project-specific test data seeding:
-        // const seedRes = await ctx.post(`${API_BASE}/action`, {
-        //     params: { cmd: "setup_testing" },
-        //     data: { scope: "all" },
-        //     headers: { Token: ADMIN_TOKEN },
-        // })
-        // if (seedRes.ok()) {
-        //     console.log("✅ Test data seeded")
-        // }
+        const apiProbe = await ctx.get("/api/content?limit=1")
+        const contentType = apiProbe.headers()["content-type"] || ""
+        if (!apiProbe.ok() || contentType.includes("text/html")) {
+            throw new Error(
+                `Playwright seed setup needs a base URL with working /api access. Current base URL ${baseURL} returned ${apiProbe.status()} ${contentType || "without content-type"} for /api/content.`
+            )
+        }
+
+        const result = await ensureSeededTestContent(baseURL)
+        console.log(
+            `Playwright setup: seeded deterministic content (deleted ${result.deleted}, created ${result.created})`
+        )
     } finally {
         await ctx.dispose()
     }