Add spec coverage for hub-workflow-detail.component.ts

[Ma77Ball]

Task Summary

Create hub-workflow-detail.component.spec.ts for frontend/src/app/hub/component/workflow/detail/hub-workflow-detail.component.ts.

Behavior to cover:

• Constructor / wid resolution — when NZ_MODAL_DATA provides { wid }, uses that and leaves isHub = false; otherwise reads wid from route.snapshot.params.id and sets isHub = true. Sets isActivatedUser true for Role.ADMIN or Role.REGULAR. Always calls WorkflowActionService.disableWorkflowModification().
• ngOnInit — early-returns when wid undefined. Otherwise:
  • HubService.getCounts([Workflow], [wid], [Like, Clone]) → assigns likeCount, cloneCount (defaulting to 0).
  • HubService.postView(wid, currentUid ?? 0, Workflow) is debounced via throttleTime(THROTTLE_TIME_MS) (1000ms) → assigns viewCount.
  • When a currentUser is defined, calls HubService.isLiked([wid], [Workflow]) and sets isLiked from result[0].isLiked (false if empty).
• ngAfterViewInit / loadWorkflowWithId — when isHub calls retrievePublicWorkflow, otherwise retrieveWorkflow; on success reloads via WorkflowActionService.reloadWorkflow and triggers center event; on error throws.
• ngOnDestroy (bound to window:beforeunload) — calls WorkflowActionService.clearWorkflow.
• goBack — navigates to DASHBOARD_HUB_WORKFLOW_RESULT; on failure calls NotificationService.error("Go back failed. Please try again.").
• cloneWorkflow — early-returns when wid undefined; otherwise calls HubService.cloneWorkflow(wid), navigates to ${DASHBOARD_USER_WORKSPACE}/${newWid}, and shows "Clone Successful" success notification.
• toggleLike — short-circuits without userId or wid; calls postUnlike when already liked, postLike otherwise; on success flips isLiked and refreshes likeCount via getCounts.
• formatCount — returns "1.0k" for 1000, raw string for <1000.
• changeViewDisplayStyle — toggles displayPreciseViewCount.

Task Type

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

[Ma77Ball]

/take