# Project Structure

## Directory Layout

```
dwroller/
├── backend/               # Backend API server
│   ├── src/
│   │   ├── routes/       # API route handlers
│   │   ├── controllers/   # Route controllers
│   │   ├── middleware/    # Auth, validation middleware
│   │   ├── models/       # Data models
│   │   └── utils/        # Helper functions
│   ├── server.js         # Express server entry point
│   └── package.json
│
├── frontend/              # React frontend application
│   ├── src/
│   │   ├── components/   # React components
│   │   ├── pages/        # Route pages
│   │   ├── hooks/        # Custom React hooks
│   │   └── store/        # State management
│   ├── public/           # Static assets
│   ├── package.json
│   └── vite.config.js
│
├── data/                  # Static data files
│   ├── gamemasters_kit/  # GM tools
│   ├── ocr_rules_*.txt   # OCR extracted rules
│   ├── rules_page.png    # Rules images
│   └── dwback.png        # Background images
│
├── database/              # Database files
│   ├── backups/          # Database backups
│   ├── MIGRATION_*.md    # Migration documentation
│   └── alexei-*.json     # Canonical data
│
├── docs/                  # This documentation
│   ├── SUMMARY.md        # Table of contents
│   ├── api.md            # API documentation
│   ├── developer-guide.md
│   ├── user-guide.md
│   └── ...
│
├── .env.example           # Environment template
├── package.json           # Root package.json
└── README.md             # Project overview
```

## Feature Architecture

```
┌─────────────────────────────────────────────────────────┐
│                    Deathwatch Roller                      │
├─────────────────────────────────────────────────────────┤
│                                                           │
│  ┌─────────────┐    ┌─────────────┐    ┌─────────────┐ │
│  │   Frontend   │───▶│     API     │───▶│   Database   │ │
│  │  (React)     │    │  (Express)  │    │  (SQLite)    │ │
│  └─────────────┘    └─────────────┘    └─────────────┘ │
│       │                    │                    │       │
│       ▼                    ▼                    ▼       │
│  - Shop         - Auth         - Players          │
│  - Bestiary     - Sessions     - Inventory        │
│  - Rules        - Files        - Webhooks         │
│  - Sessions     - Validation   - Backups          │
└─────────────────────────────────────────────────────────┘
```

## Data Flow

```
User Request
     │
     ▼
┌───────────┐
│  Frontend │
│  (React)  │
└───────────┘
     │
     ├──────────────┬──────────────┐
     ▼              ▼              ▼
┌─────────┐  ┌─────────┐  ┌─────────┐
│ Shop    │  │ Bestiary│  │ Sessions│
│ API     │  │ API     │  │ API     │
└─────────┘  └─────────┘  └─────────┘
     │              │              │
     └──────────────┴──────────────┘
                     │
                     ▼
              ┌───────────┐
              │  Backend  │
              │ (Express) │
              └───────────┘
                     │
                     ▼
              ┌───────────┐
              │  Database │
              │  (SQLite) │
              └───────────┘
```

## File Organization by Feature

### Shop/Inventory
- `backend/src/routes/shop/` - Shop API routes
- `backend/src/models/Item/` - Item model
- `backend/src/controllers/shop/` - Shop controller
- `frontend/src/components/Shop/` - Shop UI components

### Bestiary
- `backend/src/routes/bestiary/` - Bestiary routes
- `backend/src/models/Creature/` - Creature model
- `backend/src/controllers/bestiary/` - Bestiary controller
- `frontend/src/components/Bestiary/` - Bestiary UI

### Players
- `backend/src/routes/players/` - Player routes
- `backend/src/models/Player/` - Player model
- `backend/src/controllers/players/` - Player controller
- `frontend/src/components/Players/` - Player UI (GM only)