Evidence Presentation UX (Panels, Drawers, Rail, Export Center)

Module

Web

Status

IMPLEMENTED

Description

Comprehensive evidence presentation: tabbed panels across triage/findings/SBOM/policy views with reachability, binary diff, provenance, policy, and attestation chain tabs. Per-finding evidence drawer, right-rail proof pane with witness path call traces, DSSE badges, confidence meters. Evidence export center with audit bundle creation. TTE metrics tracking.

Implementation Details

Feature directory: src/Web/StellaOps.Web/src/app/shared/components/evidence-drawer/
Components:
- evidence-drawer (src/Web/StellaOps.Web/src/app/shared/components/evidence-drawer/evidence-drawer.component.ts)
Source: Feature matrix scan

E2E Test Plan

Setup:
- Log in with a user that has appropriate permissions
- Navigate to the relevant page/section where this feature appears
- 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)

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