Proof chain verification UI

Module

Web

VERIFIED

13 Angular standalone components implement proof-driven UX with evidence chains, including tabbed panels, static evidence cards, and E2E tests.

Feature directory: src/Web/StellaOps.Web/src/app/features/proof-chain/
Components:
- proof-detail-panel (src/Web/StellaOps.Web/src/app/features/proof-chain/components/proof-detail-panel.component.ts)
- verification-badge (src/Web/StellaOps.Web/src/app/features/proof-chain/components/verification-badge.component.ts)
- proof-chain (src/Web/StellaOps.Web/src/app/features/proof-chain/proof-chain.component.ts)
Services:
- proof-chain (src/Web/StellaOps.Web/src/app/features/proof-chain/proof-chain.service.ts)
Models:
- src/Web/StellaOps.Web/src/app/features/proof-chain/proof-chain.models.ts
Source: Feature matrix scan

Setup:
- Log in with a user that has appropriate permissions
- Navigate to /proofs/:subjectDigest
- Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
Core verification:
- Verify the component renders correctly with sample data
- Verify interactive elements respond to user input
- Verify data is fetched and displayed from the correct API endpoints
Edge cases:
- Verify graceful handling when backend API is unavailable (error state)
- Verify responsive layout at different viewport sizes
- Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)