[microsoft-playwright-automation]

• Pin Playwright to 8534271f0413bae6a455b7cf43b2637391bc614b (1.66.0-next, upstream main at the start of this run). Regenerate the API, protocol and test registry; update the offline-emulation documentation.
• Port EV-032, TR-001 and ER-022 in async and sync. The locateOnlyVisible client change and BC-084 remain JavaScript-only.
• Left: fix Python's deep evaluation argument handling and remove the strict EV-032 expected-failure marks. The protocol validator raises RecursionError on the 200-level argument before sending it. The same Node.js checks pass on all three browsers.
• VI-030 in unchanged test_video.py intermittently had no screencast frames. It passed on retry; five isolated runs also passed, one after two retries.

Upstream commits

• microsoft/playwright@d3ca7ab37 docs: release notes for v1.65 .NET (docs: release notes for v1.65 .NET playwright#44054)
• microsoft/playwright@c9b46324c fix(docker): upgrade base image packages during the build (fix(docker): upgrade base image packages during the build playwright#44059)
• microsoft/playwright@6ca1ba901 fix(screenshot): only keep scroll-driven timelines running when animations are disabled (fix(screenshot): only keep scroll-driven timelines running when animations are disabled playwright#44061)
• microsoft/playwright@392ab0f0d test(extension): run extension tests headless (test(extension): run extension tests headless playwright#44063)
• microsoft/playwright@b443881b4 fix(tracing): hold dropped screencast frames while throttling (fix(tracing): hold dropped screencast frames while throttling playwright#44068)
• microsoft/playwright@0921375af fix(transform): strip definite assignment before decorators run (fix(transform): strip definite assignment before decorators run playwright#44066)
• microsoft/playwright@bac1f9f67 fix(chromium): pass deep evaluation arguments outside protocol JSON (fix(chromium): pass deep evaluation arguments outside protocol JSON playwright#44069)
• microsoft/playwright@4f0a96464 docs(dotnet): add Expect(callback).ToPassAsync() (docs(dotnet): add Expect(callback).ToPassAsync() playwright#44076)
• microsoft/playwright@ed835d7ca docs: clarify offline emulation limits for WebSockets (docs: clarify offline emulation limits for WebSockets playwright#44058)
• microsoft/playwright@6d772defb feat(webkit): roll to r2393 (feat(webkit): roll to r2393 playwright#44072)
• microsoft/playwright@acd6629c1 feat(extension): tab ownership and resumable tab groups (feat(extension): tab ownership and resumable tab groups playwright#44047)
• microsoft/playwright@9a82788d8 fix(tracing): skip fetching omitted script bodies (fix(tracing): skip fetching omitted script bodies playwright#44078)
• microsoft/playwright@8882d1c85 chore(extension): upload the built extension as an artifact of the test job (chore(extension): upload the built extension as an artifact of the test job playwright#44081)
• microsoft/playwright@2a5c094cc feat(test runner): resolve package.json imports like TypeScript (feat(test runner): resolve package.json imports like TypeScript playwright#44010)
• microsoft/playwright@188c63e7c fix(mcp): validate run-code input (fix(mcp): validate run-code input playwright#44087)
• microsoft/playwright@fb10ea7d5 feat(cli): detach --close-tabs for extension sessions (feat(cli): detach --close-tabs for extension sessions playwright#44084)
• microsoft/playwright@1dc2d6dc5 fix(locator): select among visible elements in first/last/nth with locateOnlyVisible (fix(locator): select among visible elements in first/last/nth with locateOnlyVisible playwright#44083)
• microsoft/playwright@c59cf2040 fix(cli): suggest matching ffmpeg installer for video recording (fix(cli): suggest matching ffmpeg installer for video recording playwright#44088)
• microsoft/playwright@622b3db4c chore(mcp): remove unused running tool state (chore(mcp): remove unused running tool state playwright#44082)
• microsoft/playwright@8534271f0 test(webkit): no pageerror for a caught fetch during pending navigation (test(webkit): no pageerror for a caught fetch during pending navigation playwright#44090)