# Domain Entities — Unit 1: Project Scaffold & Infrastructure

TypeScript interfaces to be used in the frontend scaffold. Indentation shown with 4 spaces to match ESLint/Prettier baseline.

```ts
// src/api/types.ts

// Roles aligned with backend authorization
export type UserRole = 'Owner' | 'Administrator' | 'User';

export interface User {
    id: string;            // UUID
    email: string;
    name: string;
    role: UserRole;
    isActive: boolean;
}

export interface AuthResponse {
    accessToken: string;   // JWT access token
    expiresAt: string;     // ISO timestamp
    user: User;
}

// RFC 9457 ProblemDetails for standardized error handling
export interface ProblemDetails {
    type?: string;
    title?: string;
    status?: number;
    detail?: string;
    instance?: string;
    [extension: string]: unknown; // includes traceId
}

// Convenience wrapper for API results (optional usage)
export type ApiResult<T> = {
    ok: true;
    data: T;
} | {
    ok: false;
    error: ProblemDetails;
};

// Setup status (used by guards during bootstrap)
export interface SetupStatus {
    initialized: boolean;
}
```

Notes:
- Names align with backend payloads: property is `name` (English), never `naam`.
- `accessToken` lives only in memory (AuthContext), not persisted.
- `ProblemDetails` maps 1:1 to backend RFC 9457 responses and includes `traceId` as an extension.