Keep archived demo interfaces visible

[azizu06]

Summary

• restore the original analyzer and feed interfaces in read-only production mode
• keep URL, upload, Check it, and Refresh feed controls visible but disabled
• guard both client actions so retired pipeline requests cannot fire
• replace the large archived-state panels with compact helper text
• keep local fixture development fully interactive

TDD and verification

• RED: analyzer and refresh controls remained enabled in read-only mode
• GREEN: both controls render disabled and direct form submission makes no request
• Node 22.19.0 lint and typecheck passed
• 326 unit/component tests passed with 6 credential-gated skips
• production build passed
• Playwright: 38 passed, 2 expected skips across desktop and mobile Chromium
• production-mode headed contract smoke: original hero and controls visible, all live controls disabled, zero POST requests

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Project	Deployment	Actions	Updated (UTC)
capcheck	Ready	Preview, Comment	Jul 12, 2026 7:31pm