Implemented CLEAN architecture with clear separation of concerns: - Domain layer with entities (Player, Team, Stats, FantasyTeam) and repository interfaces - Application layer with use case implementations - Infrastructure layer with NHL API and Yahoo Fantasy API adapters - Presentation layer with FastAPI configuration and dependency injection Key features: - Swappable data source adapters (NHL API, Yahoo Fantasy API) - Repository pattern for data access abstraction - Dependency injection for loose coupling - FastAPI framework with async support - PostgreSQL database configuration - Environment-based configuration management Technology stack: Python 3.11+, FastAPI, PostgreSQL, nhl-api-py, yfpy 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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