add unit test coverage for UserWorkflowListItemComponent and BrowseSectionComponent

[mengw15]

Task Summary

Two components whose specs assert little past creation. Extend each. Vitest/jsdom; see frontend/TESTING.md (standalone → imports:; commonTestProviders; reuse Stub…Service doubles; call fixture.detectChanges() at least once).

Behavior to add

UserWorkflowListItemComponent (frontend/src/app/dashboard/component/user/user-workflow/user-workflow-list-item/user-workflow-list-item.component.ts, codecov ~62%)

• isLightColor — pure luminance check (returns whether a hex/label color is light). getProjectIds — maps the entry to its project ids. confirmUpdateWorkflowCustomName / confirmUpdateWorkflowCustomDescription — call WorkflowPersistService with the edited value. onClickDownloadWorkfllow — delegates to DownloadService. removeWorkflowFromProject — calls UserProjectService. onClickGetWorkflowExecutions — emits/navigates. Use service doubles.

BrowseSectionComponent (frontend/src/app/hub/component/browse-section/browse-section.component.ts, codecov ~72%)

• initializeEntry — sets up the entry from @Input. loadCoverImages / getCoverImage — build the ${apiEndpoint}/dataset/{id}/cover URL via a DatasetService double and return/cache the cover image string. Assert with a mocked DatasetService.

Task Type

• Refactor / Cleanup
• DevOps / Deployment / CI
• Testing / QA
• Documentation
• Performance
• Other