Add pricing and supplier master data

Distribution/Features/Supplier/SupplierRepository.cs

@@ -0,0 +1,25 @@
+using Distribution.Data;
+using Microsoft.EntityFrameworkCore;
+
+namespace Distribution.Features.Supplier;
+
+public class SupplierRepository(AppDBContext context) : ISupplierRepository
+{
+    public async Task<Models.Supplier?> GetByIdAsync(Guid id) =>
+        await context.Suppliers.FindAsync(id);
+
+    public async Task<List<Models.Supplier>> GetAllAsync() =>
+        await context.Suppliers.Where(s => s.IsActive).ToListAsync();
+
+    public async Task AddAsync(Models.Supplier entity) =>
+        await context.Suppliers.AddAsync(entity);
+
+    public void Update(Models.Supplier entity) =>
+        context.Suppliers.Update(entity);
+
+    public void Remove(Models.Supplier entity)
+    {
+        entity.IsActive = false;
+        context.Suppliers.Update(entity);
+    }
+}