# B2R2 LowUIR IR Lifting for Semantic Binary Analysis

## Module
Web

## Status
IMPLEMENTED

## Description
B2R2 LowUIR adapter for intermediate representation lifting, bounded lifter pool with ISA warm preload, and Valkey-backed function-level IR cache with PostgreSQL persistence for deterministic semantic fingerprints.

## Implementation Details
- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/binary-index/`
- **Components**:
  - `binary-index-ops` (`src/Web/StellaOps.Web/src/app/features/binary-index/binary-index-ops.component.ts`)
  - `patch-map` (`src/Web/StellaOps.Web/src/app/features/binary-index/patch-map.component.ts`)
- **Source**: SPRINT_20260112_004_BINIDX_b2r2_lowuir_perf_cache.md

## E2E Test Plan
- **Setup**:
  - [ ] Log in with a user that has appropriate permissions
  - [ ] Navigate to `/analyze/patch-map`
  - [ ] 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)