test(e2e): cover default user budget administration

[saurya]

Migration

Ports https://github.com/OpenHands/saas-deploy/pull/588 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 one Playwright spec containing one test for the default new-user organization budget
• use the current /settings/budgets route, Default budgets tab, and #default-budget-amount control
• verify both the UI-triggered PATCH response and persisted API state

Validation

• npm --prefix e2e_tests run typecheck
• cd e2e_tests && npx eslint tests/admin-default-user-budget.spec.ts
• cd e2e_tests && npx prettier --check tests/admin-default-user-budget.spec.ts
• cd e2e_tests && npx playwright test tests/admin-default-user-budget.spec.ts --list

Environment contract

• e2e_tests/fixtures/auth.json: organization admin/owner with a non-personal organization selected
• BASE_URL: target OpenHands Enterprise deployment
• missing authentication, personal-organization selection, or insufficient role throws a clear error rather than skipping

Cleanup and risk

• generates a unique positive decimal limit for the run
• restores the exact previous default_user_monthly_limit in finally, including null
• asserts cleanup response and restored value softly so the original failure remains visible
• run serially against a dedicated test organization because shared budget state changes temporarily

AI-agent disclosure: This draft PR was created by OpenHands on behalf of the user.

Port validation

• Exactly one changed file: e2e_tests/tests/admin-default-user-budget.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.