# Unknowns Grey Queue Panel

## Module
Web

## Status
IMPLEMENTED

## Description
Grey queue panel for managing unknown findings with conflict detection and reanalysis fingerprints. Includes a budget widget showing unknowns consumption against policy thresholds and a queue component for prioritized triage of unknown-state findings.

## Implementation Details
- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/triage/components/unknowns-list/`
- **Components**:
  - `unknowns-list` (`src/Web/StellaOps.Web/src/app/features/triage/components/unknowns-list/unknowns-list.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 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)