# Change: Add React Frontend Application

## Why
The Task Reporter system currently has a complete backend API but no user interface. Users cannot interact with the incident response system without a frontend application. A React-based SPA will enable production line operators, supervisors, and engineers to create incident rooms, collaborate in real-time, upload evidence files, and manage incident resolution.

## What Changes
- **NEW**: React 18 + Vite frontend application
- **NEW**: Authentication flow (login/logout with token management)
- **NEW**: Incident room management UI (create, list, view, update)
- **NEW**: Real-time chat interface with WebSocket integration
- **NEW**: File upload/download interface with image preview
- **NEW**: Member management UI (add, remove, change roles)
- **NEW**: Responsive layout for desktop and tablet use

## Impact
- Affected specs: Creates new `frontend-core` specification
- Affected code:
  - New `frontend/` directory with React application
  - Backend CORS configuration update (app/main.py)
  - Static file serving configuration

## Dependencies
- Backend API must be running (localhost:8000)
- MinIO must be running for file uploads (localhost:9000)

## Success Criteria
1. Users can login with AD credentials
2. Users can create and join incident rooms
3. Users can send/receive messages in real-time
4. Users can upload and view files (images, PDFs, logs)
5. Room owners can manage members and room status