ci(frontend): upload Playwright artifacts when E2E tests fail

[talissoncosta]

Thanks for submitting a PR! Please check the boxes below:

• I have read the Contributing Guide.
• I have added information to docs/ if required so people know about the feature.
• I have filled in the "Changes" section below.
• I have filled in the "How did you test this code" section below.

Changes

When the E2E gate fails on the production deploy (or staging/ECS runs), the Playwright traces, screenshots and DOM snapshots die with the runner, so failures like the ones blocking today's deploy can only be debugged by reproducing locally.

This uploads e2e/test-results and the Playwright report as a run artifact when the E2E step fails:

• 7-day retention, since traces capture network payloads including the (throwaway, reseeded-per-run) e2e users' auth tokens.
• Artifact name includes github.run_attempt to avoid the immutable-name collision in upload-artifact@v4 when a failed job is re-run.
• No-op on green runs (if: failure()), and if-no-files-found: ignore covers failures before Playwright starts.

How did you test this code?

Validated the action YAML parses. The step only runs on E2E failure in CI; the paths match Playwright's configured outputDir (e2e/test-results) and report directory, verified against a local failing run.

[vercel]

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3 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs	Ignored		Jun 12, 2026 5:54pm
flagsmith-frontend-preview	Ignored		Jun 12, 2026 5:54pm
flagsmith-frontend-staging	Ignored		Jun 12, 2026 5:54pm

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-7774	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-e2e:pr-7774	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-frontend:pr-7774	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-api:pr-7774	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-7774	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-7774	Finished ✅	Results ✅

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.57%. Comparing base (56f2ad6) to head (322fe31).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7774      +/-   ##
==========================================
+ Coverage   98.56%   98.57%   +0.01%     
==========================================
  Files        1459     1460       +1     
  Lines       56134    57082     +948     
==========================================
+ Hits        55327    56271     +944     
- Misses        807      811       +4     

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[github-actions]

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 42.2 seconds
 322fe31
 🔄 Run: #17471 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 40.5 seconds
 322fe31
 🔄 Run: #17471 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 1 minute, 13 seconds
 322fe31
 🔄 Run: #17471 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 2 passed

Details

 2 tests across 2 suites
 37.2 seconds
 322fe31
 🔄 Run: #17471 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 38.6 seconds
 322fe31
 🔄 Run: #17501 (attempt 1)

Playwright Test Results (oss - depot-ubuntu-latest-16)

 1 passed

Details

 1 test across 1 suite
 40.8 seconds
 322fe31
 🔄 Run: #17501 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-16)

 3 passed

Details

 3 tests across 3 suites
 33 seconds
 322fe31
 🔄 Run: #17501 (attempt 1)

Playwright Test Results (private-cloud - depot-ubuntu-latest-arm-16)

 1 passed

Details

 1 test across 1 suite
 41.8 seconds
 322fe31
 🔄 Run: #17501 (attempt 1)

[github-actions]

Visual Regression

19 screenshots compared. See report for details.
View full report

[emyller]

Thanks! I'm finally happier since #6023 was closed.