# Approvals Inbox with Diff-First Presentation

## Module
Web

## Status
IMPLEMENTED

## Description
Approvals inbox showing pending approval requests with diff-first card design highlighting what changed, enabling quick triage of release promotion requests.

## Implementation Details
- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/approvals/`
- **Routes**: `approvals.routes.ts`
- **Components**:
  - `approval-detail-page` (`src/Web/StellaOps.Web/src/app/features/approvals/approval-detail-page.component.ts`)
  - `approval-detail` (`src/Web/StellaOps.Web/src/app/features/approvals/approval-detail.component.ts`)
  - `approvals-inbox-page` (`src/Web/StellaOps.Web/src/app/features/approvals/approvals-inbox-page.component.ts`)
  - `approvals-inbox` (`src/Web/StellaOps.Web/src/app/features/approvals/approvals-inbox.component.ts`)
  - `request-exception-modal` (`src/Web/StellaOps.Web/src/app/features/approvals/modals/request-exception-modal.component.ts`)
- **Source**: SPRINT_20260118_005_FE_approvals_feature.md

## E2E Test Plan
- **Setup**:
  - [ ] Log in with a user that has appropriate permissions
  - [ ] Navigate to `/approvals`
  - [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
- **Core verification**:
  - [ ] Verify side-by-side comparison view renders correctly with two versions
  - [ ] Verify additions, removals, and changes are visually highlighted
  - [ ] Verify diff data matches the expected delta between versions
- **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)