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+# hrynco-ef
+
+Reusable Entity Framework Core base library for HrynCo applications.
+
+## Solution
+
+The solution (`hrynco-ef.slnx`) contains two projects:
+
+| Project | Description |
+|---|---|
+| `HrynCo.DAL.Abstract` | Infrastructure-agnostic contracts: entities, repository interfaces, unit of work, transactions, pagination. No EF Core dependency. |
+| `HrynCo.DAL.EF` | Entity Framework Core implementations of the abstract contracts. Depends on `HrynCo.DAL.Abstract` and EF Core. |
+
+The split allows consuming projects to reference only `HrynCo.DAL.Abstract` in domain/application layers, keeping those layers free of EF Core.
+
+## Packages
+
+### `HrynCo.DAL.Abstract`
+
+| Type | Description |
+|---|---|
+| `IEntity` / `IEntity<TId>` | Base entity contracts |
+| `Entity<TId>` / `Entity` | Base entity implementations with auto-generated `Id` |
+| `NamedEntity` | Entity with a `Name` property |
+| `IUnitOfWork` | Unit of work interface with transaction support |
+| `ITransaction` | Async transaction contract |
+| `PagedResult<T>` | Pagination result wrapper |
+
+### `HrynCo.DAL.EF`
+
+| Type | Description |
+|---|---|
+| `BaseRepository<T>` | Base repository wrapping the EF repository (lazy) |
+| `BaseEfRepository<T>` | EF Core repository with full CRUD and `DbContext` access |
+| `IEfRepository<T>` | EF-specific repository interface |
+| `EfUnitOfWork` | EF Core unit of work implementation |
+| `EfTransactionAdapter` | Adapts EF transactions to `ITransaction` |
+
+## Usage
+
+Reference `HrynCo.DAL.Abstract` for contracts only (domain/application layers).
+Reference `HrynCo.DAL.EF` for the full EF Core implementation (infrastructure layer).
+
+```csharp
+// 1. Define your entity
+public class Product : Entity
+{
+    public string Name { get; set; } = string.Empty;
+}
+
+// 2. Implement your repository
+public class ProductRepository : BaseEfRepository<YourDbContext, Product, Guid>
+{
+    public ProductRepository(YourDbContext context) : base(context) { }
+}
+
+// 3. Register in DI
+services.AddScoped<IEfRepository<Product, Guid>, ProductRepository>();
+services.AddScoped<IUnitOfWork, EfUnitOfWork<YourDbContext>>();
+```
+
+## Pages
+
+- [[Versioning]] — how versions are bumped and packages published
+- [[Class-Diagram]] — full class and interface hierarchy
+
+## Related
+
+- [IT-642](https://yt.grynco.com.ua/issue/IT-642) — Extract `PagedResult` builder as reusable `IQueryable<T>` extension
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