1.0.0

Added

• Render, hydrate, DOM queries and automatic root cleanup for component tests.
• User-event helpers and utilities for testing effects, hooks and directives.
• @shadow-js/testing/playwright: waitForHydration (the dusk:hydrated mark), collectProblems
  (console errors and warnings, page errors, failed requests, 4xx/5xx answers), clientNavigate
  (follows a link and fails on a full document load), startApp and freePort (the app under test on a
  free port, stopped with SIGINT then SIGKILL), and createTest, which adds the app, problems
  and hydrated fixtures to a @playwright/test test. playwright-core is an optional peer
  dependency; the entry imports no Playwright package.