Merge branch 'main' into bl-selective-snapshot-update

Resolved conflicts in update-playwright-expectations.yaml by:
- Keeping main's improvements: concurrency control, comment reactions, better branch checkout
- Keeping our selective snapshot update logic with validation
- Keeping our workflow summary generation
- Combined both sets of improvements for a robust solution

Fixed eslint configuration issue where vite.config.mts was in both allowDefaultProject and tsconfig.json

vitest.setup.ts

@@ -1,3 +1,4 @@
+import { vi } from 'vitest'
 import 'vue'
 
 // Define global variables for tests
@@ -7,3 +8,12 @@ globalThis.__SENTRY_DSN__ = ''
 globalThis.__ALGOLIA_APP_ID__ = ''
 globalThis.__ALGOLIA_API_KEY__ = ''
 globalThis.__USE_PROD_CONFIG__ = false
+
+// Mock Worker for extendable-media-recorder
+globalThis.Worker = vi.fn().mockImplementation(() => ({
+  postMessage: vi.fn(),
+  terminate: vi.fn(),
+  addEventListener: vi.fn(),
+  removeEventListener: vi.fn(),
+  dispatchEvent: vi.fn()
+}))