PM-5368: show cancelled Marathon Match test status in the work app

[jmgasper]

What was broken

In the work app submissions table, a Marathon Match submission whose scorer was stopped because the member submitted a newer solution showed an empty Test Status cell with no explanation — exactly the state in the PM-5368 screenshots. Copilots and managers could not tell a superseded run apart from one that had never started.

Root cause

normalizeTestStatus in the work app challenge utils only recognized FAILED, IN PROGRESS and SUCCESS, so the CANCELLED status now recorded by marathon-match-api-v6 was normalized away and renderTestStatusIcon had no branch for it.

Separately, the placeholder aggregate score (-1) written for a terminal run that produced no score was only suppressed for IN PROGRESS runs, so a cancelled run would have rendered -1.00 in the Initial / Final Score column.

What was changed

• normalizeTestStatus and the display status union accept CANCELLED, and a cancelled run is treated as terminal when ordering summations to pick the current one.
• SubmissionsTable renders a neutral grey BanIcon for CANCELLED, so the run reads as "stopped" rather than "failed" — the ticket is explicit that cancelled must not be shown as a failure.
• Score suppression is generalized from "in progress" to "produced no score", so a cancelled run shows the empty score placeholder instead of the -1 sentinel.

Any added/updated tests

• src/apps/work/src/lib/utils/challenge.utils.spec.ts — new case covering that getSubmissionTestProgress surfaces a cancelled provisional run with its process and progress.
• src/apps/work/src/lib/components/SubmissionsTable/SubmissionsTable.spec.tsx — new case covering that a superseded run renders the cancelled status icon and no aggregate score; the ~/libs/ui mock gained BanIcon.

Commands run: tsc --noEmit (clean), eslint over src/apps/work/src/lib (clean), and craco test --watchAll=false --testPathPattern "apps/work/src/lib". SubmissionsTable.spec.tsx and challenge.utils.spec.ts pass; the 2 failing suites in that run (PaymentFormModal, AcceptApplicationModal) fail identically on dev without this change.

Related PRs

• marathon-match-api-v6: cancel a member's in-flight MM scorer before scoring their newest submission
• review-api-v6: allow CANCELLED through the member-safe review summation metadata allowlist
• community-app: show cancelled Marathon Match scoring in My Submissions

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