test(e2e): cover Skills and Plugins navigation

[saurya]

Migration

Ports https://github.com/OpenHands/saas-deploy/pull/577 from OpenHands/saas-deploy so the test ships with the OpenHands-Cloud chart release it validates.

This pull request is based directly on main, which includes the foundational Playwright harness from OpenHands-Cloud #1048.

Original scenario contract

Summary

• add exactly one Playwright spec containing one authenticated OHE navigation test
• enter Customize from /canvas using sidebar-skills-link, verify the Canvas extensions navigation, then open the cloud Skills and Plugins link
• assert the current OHE /settings/skills route and skills-settings-screen test ID
• apply e2e_tests/fixtures/auth.json at file level because Chromium clears project storage state

Validation

• npm run lint (blocked only by 15 pre-existing lint/format errors in shared e2e files; this PR does not alter them)
• npx eslint tests/ohe-customize-skills-plugins.spec.ts
• npx prettier --check tests/ohe-customize-skills-plugins.spec.ts
• npx playwright test tests/ohe-customize-skills-plugins.spec.ts --list --project=chromium

Required environment

• BASE_URL: authenticated OHE deployment base URL; the test fails with a helpful error when unset
• generated e2e_tests/fixtures/auth.json for an authenticated OHE member

Cleanup

Read-only navigation scenario; it creates no server-side state and requires no cleanup.

Live-fixture status

Not run live because this workspace has no authenticated OHE BASE_URL/auth fixture. Static discovery and focused lint/format checks pass.

This pull request was created by an AI agent (OpenHands) on behalf of the user.

Port validation

• Exactly one changed file: e2e_tests/tests/ohe-customize-skills-plugins.spec.ts.
• Exactly one Playwright test in the spec.
• Focused ESLint and Prettier checks passed.
• tsc --noEmit passed against the Cloud harness.
• Chromium Playwright --list discovery passed.
• Live execution still requires the explicit authentication and TEST_* contracts documented above.

AI disclosure: This pull request was migrated by an AI agent (OpenHands) on behalf of the user.