docs: update User model description

- Removed `isAdmin` flag mention
- Added `role` property mention

Author: fulleni

README.md

@@ -27,7 +27,7 @@ This package provides the following core data models:
 *   **`Category`**: Represents a news category with an ID, name, and optional description and icon URL.
 *   **`Source`**: Represents a news source, including ID, name, description, URL, language, optional headquarters (`Country`), and a `SourceType` enum (e.g., `newsAgency`, `blog`).
 *   **`Country`**: Represents a country with an ID, ISO code, name, and flag URL.
-*   **`User`**: Represents an authenticated user within the system, including an `isAdmin` flag.
+*   **`User`**: Represents a user within the system, including their assigned `role`.
 *   **`PaginatedResponse<T>`**: A generic class for handling paginated API responses, containing a list of items (`items`), a `cursor` for the next page, and a `hasMore` flag.
 *   **`AuthSuccessResponse`**: Represents the successful result of an authentication operation, typically containing the authenticated user details and an access token.
 *   **`SuccessApiResponse<T>`**: A generic wrapper for successful API responses, containing the main `data` payload (of type `T`) and optional `ResponseMetadata`.

lib/src/models/user.dart

@@ -3,12 +3,10 @@ import 'package:json_annotation/json_annotation.dart';
 
 part 'user.g.dart';
 
-/// Represents an authenticated user within the system.
+/// Represents a user within the system.
 ///
 /// This model holds basic information about the user, including their
-/// unique identifier, email (if available), and whether they are
-/// authenticated anonymously. It also includes an [isAdmin] flag
-/// to indicate administrative privileges.
+/// unique identifier, email (if available), and their assigned [role].
 @JsonSerializable()
 class User extends Equatable {
   /// Creates a new [User] instance.