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VEX Merge Panel Three-Column Layout

Module

Web

Status

IMPLEMENTED

Description

Three-column VEX merge panel (source A / merged result / source B) with inline conflict resolution, lattice-based merge visualization, and trust provenance annotations. Enhances the existing VEX merge workflow with side-by-side comparison.

Implementation Details

  • Feature directory: src/Web/StellaOps.Web/src/app/features/vex-studio/components/vex-merge-panel/
  • Components:
    • vex-merge-panel (src/Web/StellaOps.Web/src/app/features/vex-studio/components/vex-merge-panel/vex-merge-panel.component.ts)
  • Source: batch_38/file_16.md

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 panel/drawer opens on trigger (click, keyboard shortcut)
    • Verify the panel displays the correct detail data for the selected item
    • Verify the panel can be closed (X button, Escape key, backdrop click)
  • 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)