Add support open trace viewer from plugin allure-pytest (flow version allure-2.35.1)

We need to add support for opening the Playwright trace viewer directly from Allure reports (version 2.35.1, Flow UI). Currently, traces are attached but not automatically viewable within the Allure Flow interface.

https://github.com/allure-framework/allure2/pull/2964/commits

Acceptance Criteria:

Traces (trace.zip) attached to test results should be openable directly in the Allure Flow UI (v2.35.1).

A button or link should appear in the report to launch the trace viewer.

Ensure compatibility with existing Playwright trace files.

Expected Result:
Users can open Playwright trace viewer seamlessly from Allure Flow reports without leaving the report context.

Commencez par examiner les commits du PR Allure lié et le flux existant des pièces jointes trace.zip dans allure-pytest. Vérifiez comment Allure Flow v2.35.1 gère les traces Playwright jointes, puis vérifiez qu’une trace jointe peut lancer le Playwright trace viewer depuis le rapport sans le quitter.

Rédigé par le modèle d'indexation à partir du texte de l'issue.