/**
 * View Data Layer Tests - Leagues Functionality
 *
 * This test file will cover the view data layer for leagues functionality.
 *
 * The view data layer is responsible for:
 * - DTO → UI model mapping
 * - Formatting, sorting, and grouping
 * - Derived fields and defaults
 * - UI-specific semantics
 *
 * This layer isolates the UI from API churn by providing a stable interface
 * between the API layer and the presentation layer.
 *
 * Test coverage will include:
 * - League list data transformation and sorting
 * - Individual league profile view models
 * - League roster data formatting and member management
 * - League schedule and standings view models
 * - League stewarding and protest handling data transformation
 * - League wallet and sponsorship data formatting
 * - League creation and migration data transformation
 * - Derived league fields (member counts, status, permissions, etc.)
 * - Default values and fallbacks for league views
 * - League-specific formatting (dates, points, positions, race formats, etc.)
 * - Data grouping and categorization for league components
 * - League search and filtering view models
 * - Real-time league data updates and state management
 */