# Module: Azaion.Common.Requests.SetHWRequest

## Purpose
Request DTO and validator for setting a user's hardware fingerprint (`PUT /users/hardware/set`).

## Public Interface

### SetHWRequest
| Property | Type | Description |
|----------|------|-------------|
| `Email` | `string` | Target user's email |
| `Hardware` | `string?` | Hardware fingerprint (null clears it) |

### SetHWRequestValidator
| Rule | Constraint | Error Code |
|------|-----------|------------|
| `Email` not empty | Required | `EmailLengthIncorrect` |

## Dependencies
- `BusinessException`, `ExceptionEnum`
- FluentValidation

## Consumers
- `Program.cs` `/users/hardware/set` endpoint

## Data Models
None.

## Configuration
None.

## External Integrations
None.

## Security
None.

## Tests
None.