test(frontend): re-enable 4 user-workflow / dashboard / list-item specs

[Yicong-Huang]

What changes were proposed in this PR?

Drop 4 entries from the spec exclusion lists in tsconfig.spec.json and angular.json's test target, port their TestBed setups to the standalone-component shape, and fix one malformed template attribute that jsdom won't tolerate.

Specs re-enabled:

• dashboard.component.spec.ts — extends socialAuthServiceMock with initState (the Google sign-in directive subscribes to it in its constructor) and adds an AdminSettingsService stub; switches to imports: [DashboardComponent] so its standalone graph carries GoogleSigninButtonModule instead of relying on NO_ERRORS_SCHEMA.
• user-project-list-item.component.spec.ts — wraps the component in a TestHostComponent template <nz-list><texera-user-project-list-item .../></nz-list> so the <nz-list-item>-rooted component finds an NzListComponent provider; adds provideRouter([]) for the embedded [routerLink].
• user-workflow-list-item.component.spec.ts — same <nz-list> host wrapper.
• user-workflow.component.spec.ts — switches declarations: [...] to imports: [...] for the now-standalone children; converts beforeEach(waitForAsync(...)) to beforeEach(async () => ...) so the setup runs outside the per-it ProxyZone wrapper.

Drive-by template fix:

user-workflow.component.html had a stray ]="true" line — left over from #4873's [nzBorderless]="true" → nzVariant="borderless" rewrite. Browsers silently tolerate the malformed attribute, but jsdom throws InvalidCharacterError: "]" did not match the Name production during setAttribute, which is why the spec couldn't run under Vitest.

After this PR, the exclude list contains only specs gated on Vitest browser mode (#4866) or specs whose body is still a placeholder.

Any related issues, documentation, discussions?

Part of #4880.

How was this PR tested?

yarn install && yarn ng test --watch=false exits 0 locally; yarn format:ci is clean. CI exercises the same test command on the ubuntu / windows / macos frontend matrices.

Test Files  56 passed | 3 skipped (59)
     Tests  248 passed | 8 skipped | 2 todo (258)

Was this PR authored or co-authored using generative AI tooling?

Generated-by: Claude Opus 4.7 (1M context)

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 42.41%. Comparing base (6b79896) to head (2817c1b).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #4944      +/-   ##
============================================
+ Coverage     42.22%   42.41%   +0.19%     
  Complexity     2180     2180              
============================================
  Files           980     1005      +25     
  Lines         36287    37407    +1120     
  Branches       3783     3914     +131     
============================================
+ Hits          15321    15865     +544     
- Misses        20038    20578     +540     
- Partials        928      964      +36     

Flag	Coverage Δ
frontend	32.27% <ø> (+1.73%)	⬆️

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