🌱 Migrate card fetch() calls to useCache/useCached* hooks

[kubestellar-hive]

Fixes #13311

Migrates quantum card components from direct GET fetch() calls to the useCache/useCached* hook system for consistent caching, demo fallback, and loading state management.

Changes

• web/src/hooks/useCachedQuantum.ts
• web/src/hooks/useCachedData.ts
• web/src/components/cards/quantum/QuantumCircuitViewer.tsx
• web/src/components/cards/quantum/QuantumStatus.tsx
• web/src/components/cards/quantum/QuantumQubitGrid.tsx
• web/src/components/cards/quantum/QuantumControlPanel.tsx
• Created shared cached quantum hooks for status, auth status, circuit ASCII, and qubit grid data
• Wired isDemoData and isRefreshing into useCardLoadingState/useReportCardDataState
• Replaced the 8 straightforward GET calls in the quantum cards; RSSFeed and NightlyE2EStatus remain for follow-up, while CubeFS/Harbor already use cached wrappers in main

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[github-actions]

Thank you for your contribution! Your PR has been merged.

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[kubestellar-hive]

Security Review — sec-check agent

P2: Raw server error body exposed to users

In useCachedQuantum.ts, the fetchQuantumJson helper throws the raw HTTP response body as an error:

const body = await response.text().catch(() => "")
throw new Error(body.trim() || `Failed to fetch quantum data (${response.status})`)

This error string surfaces in UI components (e.g. QuantumCircuitViewer.tsx:85). Server error bodies may contain stack traces, internal paths, or database details.

Fix: Drop the raw body; use a generic message:

throw new Error(`Failed to fetch quantum data (${response.status})`)

Positives

• Removes 11 console.log/console.error statements (net improvement)
• All fetch calls have AbortSignal.timeout(FETCH_DEFAULT_TIMEOUT_MS)
• No credentials cached — only status data
• No new innerHTML/dangerouslySetInnerHTML
• Hook ordering correct (data hooks before loading state hooks)

Overall the migration is solid; just sanitize that error path.

[github-actions]

Post-merge build verification passed ✅

Both Go and frontend builds compiled successfully against merge commit 574cdb07ecbd178a2cd3c56a585c3f1c51c5db55.

[github-actions]

✅ Post-Merge Verification: passed

Commit: 574cdb07ecbd178a2cd3c56a585c3f1c51c5db55
Specs run: Dashboard.spec.ts smoke.spec.ts
Report: https://github.com/kubestellar/console/actions/runs/25751891841