- Created standard .NET6 project structure with Haoliang.Api, Haoliang.Core, Haoliang.Data, Haoliang.Models, and Haoliang.Tests
- Implemented device management API with Entity Framework Core and MySQL
- Added production calculation logic for CNC machine output statistics
- Created comprehensive data models for devices, templates, production records, users, and system
- Implemented repository pattern for data access
- Added comprehensive test coverage for models and production logic
- Fixed version compatibility issues with Pomelo.EntityFrameworkCore.MySql and Microsoft.AspNetCore.Cors
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