fix: resolve flaky workspace settings e2e test

[InFiNiTy0639]

Issue: #1531

Description

Fixed the flaky E2E test e2e/tests/settings/administrator/workspace.spec.ts.

Problem

The e2e test allows updating workspace settings in workspace.spec.ts is flaky. After clicking "Save changes" and confirming the "Changes saved" toast, the test immediately queries the database to verify the update. However, the toast appearing does not guarantee the database transaction has fully committed, causing a race condition where assertions fail intermittently.

Solution

Wrapped the database assertions in Playwright's expect(async () => { ... }).toPass() retry mechanism. This polls the database until the expected values match or the configured timeout (30s) is reached, eliminating the race condition between the UI confirmation and the database commit.

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Before/After

No UI changes — this is a test-only fix.

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Test Results

Run pnpm playwright test e2e/tests/settings/administrator/workspace.spec.ts --workers=1 --repeat-each=5

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Checklist

• I have read the contributing guidelines
• I have watched Gumroad PR review livestreams
• I have performed a self-review and left review comments on my PR
• I have added/updated tests for my changes

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AI Disclosure

Claude Opus 4.5 was used to analyze the flaky test.

[InFiNiTy0639]

@ershad sir please review this

[InFiNiTy0639]

@ershad @nyomanjyotisa , I also checked e2e/tests/settings/administrator/payment-details.spec.ts. when I run
pnpm exec playwright test e2e/tests/settings/administrator/payment-details.spec.ts,

skips 2 tests.

In backend/config/initializers/stripe.rb, the stripe_api_key is set to a dummy value, and the Stripe key in the .env file is also a dummy.