Rebuild data storage system so that database dependencies get taken into account

test/RestApiTest/DatabaseContext.cs

@@ -1,12 +1,25 @@
 using HopFrame.Database;
 using Microsoft.EntityFrameworkCore;
+using RestApiTest.Models;
 
 namespace RestApiTest;
 
 public class DatabaseContext : HopDbContextBase {
+
+    public DbSet<Employee> Employees { get; set; }
+    public DbSet<Address> Addresses { get; set; }
+    
     protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) {
         base.OnConfiguring(optionsBuilder);
 
         optionsBuilder.UseSqlite("Data Source=C:\\Users\\Remote\\Documents\\Projekte\\HopFrame\\test\\RestApiTest\\bin\\Debug\\net8.0\\test.db;Mode=ReadWrite;");
     }
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder) {
+        base.OnModelCreating(modelBuilder);
+
+        modelBuilder.Entity<Employee>()
+            .HasOne(e => e.Address)
+            .WithOne(a => a.Employee);
+    }
 }