feat(cost-management): add Playwright E2E test suite

[hardengl]

Summary

Adds the Cost Management / ROS Playwright E2E suite into workspaces/cost-management, following the same two-tier pattern as the merged DCM suite (#3249).

Merge gate (CI): app.test.ts runs against the local workspace app shell — validates the app boots and sidebar renders.

Downstream E2E (Jenkins): 100+ tests across 11 files, activated by PLAYWRIGHT_URL. Covers:

• Live-cluster smoke (navigation, table, details, charts, apply, performance)
• 3-tier RBAC (ros.plugin / ros/<cluster> / ros/<cluster>/<project>) — FLPATH-4207
• Secure proxy / server-side RBAC — FLPATH-3503
• Marketplace install flow
• OpenShift cost page, table/pagination, dark theme, Apply Recommendation workflow

Why a new branch (not the old fork branch)

Previous PRs failed for the wrong shape:

• Add e2e tests for resource optimization plugin #2260 — went stale
• feat(e2e): add RBAC E2E tests for resource optimization (FLPATH-4207) #3192 — opened the full divergent feature/resource-optimization-e2e-tests branch (~880 commits / old workspace name)

This PR is test-only, based on current main, and lands files under the renamed cost-management workspace.

Architecture

// playwright.config.ts
projects: [
  { name: 'chromium', testMatch: /app\.test\.ts$/ },           // merge gate
  ...(PLAYWRIGHT_URL ? [{ name: 'live', testMatch: /…/ }] : []), // Jenkins
]

Run downstream tests with:

cd workspaces/cost-management
PLAYWRIGHT_URL=https://backstage-...apps... yarn e2e-test:live

Test plan

• yarn playwright test --list → 1 test (chromium / merge gate) without PLAYWRIGHT_URL
• PLAYWRIGHT_URL=… yarn playwright test --list → 104 tests in 12 files
• Prettier + eslint via lint-staged on commit
• GitHub CI: Playwright install + yarn playwright test for cost-management workspace
• After merge: retarget Jenkins flightpath-ros profiles from fork branch feature/resource-optimization-e2e-tests → upstream main + workspaces/cost-management

Notes

• No plugin code changes; no changeset (test-only)
• CODEOWNERS: @PreetiW @mareklibra @ydayagi @batzionb @asmasarw @Aurobinda55 @r14chandra @kgaikwad
• Nightlies can keep using the fork branch until this merges; then update RHDH_PLUGINS_BRANCH / path

Made with Cursor

[rhdh-gh-app]

Changed Packages

Package Name	Package Path	Changeset Bump	Current Version
app	workspaces/cost-management/packages/app	none	v0.0.5

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.58%. Comparing base (2e4c46e) to head (42b7afd).
⚠️ Report is 4 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4276   +/-   ##
=======================================
  Coverage   59.58%   59.58%           
=======================================
  Files        2459     2459           
  Lines       98272    98272           
  Branches    27448    27438   -10     
=======================================
  Hits        58559    58559           
- Misses      39348    39352    +4     
+ Partials      365      361    -4     

Flag	Coverage Δ		*Carryforward flag
adoption-insights	84.55% <ø> (ø)		Carriedforward from 3781352
ai-integrations	68.29% <ø> (ø)		Carriedforward from 3781352
app-defaults	69.79% <ø> (ø)		Carriedforward from 3781352
augment	46.67% <ø> (ø)		Carriedforward from 3781352
boost	77.63% <ø> (ø)		Carriedforward from 3781352
bulk-import	72.79% <ø> (ø)		Carriedforward from 3781352
cost-management	13.55% <ø> (ø)
dcm	67.21% <ø> (ø)		Carriedforward from 3781352
e2e-adoption-insights	60.00% <ø> (ø)		Carriedforward from 3781352
e2e-extensions	62.13% <ø> (ø)		Carriedforward from 3781352
e2e-intelligent-assistant	46.74% <ø> (ø)		Carriedforward from 3781352
extensions	56.59% <ø> (ø)		Carriedforward from 3781352
global-floating-action-button	71.18% <ø> (ø)		Carriedforward from 3781352
global-header	66.50% <ø> (ø)		Carriedforward from 3781352
homepage	47.50% <ø> (ø)		Carriedforward from 3781352
install-dynamic-plugins	59.95% <ø> (ø)		Carriedforward from 3781352
intelligent-assistant	75.42% <ø> (ø)		Carriedforward from 3781352
konflux	91.98% <ø> (ø)		Carriedforward from 3781352
lightspeed	69.02% <ø> (ø)		Carriedforward from 3781352
mcp-integrations	83.40% <ø> (ø)		Carriedforward from 3781352
orchestrator	71.27% <ø> (ø)		Carriedforward from 3781352
quickstart	63.74% <ø> (ø)		Carriedforward from 3781352
sandbox	79.56% <ø> (ø)		Carriedforward from 3781352
scorecard	86.25% <ø> (ø)		Carriedforward from 3781352
theme	88.14% <ø> (ø)		Carriedforward from 3781352
translations	5.12% <ø> (ø)		Carriedforward from 3781352
x2a	79.20% <ø> (ø)		Carriedforward from 3781352

*This pull request uses carry forward flags. Click here to find out more.

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[hardengl]

Status update

GitHub Actions: all required workspace CI checks passed (cost-management node 22/24 + verify).

SonarCloud: Quality Gate failed on 1 new bug — identical ternary in routes.ts (S3923). Fixed in 42b7afd and pushed; Sonar should re-run green.

CODEOWNERS already auto-requested: @ydayagi @mareklibra @batzionb @PreetiW @asmasarw @Aurobinda55 @r14chandra @kgaikwad

Ready for review once Sonar flips green. Test-only PR (same pattern as DCM #3249).

[sonarqubecloud]

Quality Gate passed

Issues
74 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[hardengl]

All checks are green now (including SonarCloud Quality Gate after the S3923 fix).

@PreetiW @Aurobinda55 @mareklibra @kgaikwad @r14chandra @ydayagi @batzionb @asmasarw — ready for CODEOWNER review / merge when you have a chance. Test-only PR.