Add project files.

Server/Repository/EventRegistrationContext.cs

@@ -0,0 +1,28 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.AspNetCore.Http;
+using Oqtane.Modules;
+using Oqtane.Repository;
+using Oqtane.Infrastructure;
+using Oqtane.Repository.Databases.Interfaces;
+
+namespace SZUAbsolventenverein.Module.EventRegistration.Repository
+{
+    public class EventRegistrationContext : DBContextBase, ITransientService, IMultiDatabase
+    {
+        public virtual DbSet<Models.Event> Event { get; set; }
+        public virtual DbSet<Models.Response> Response { get; set; }
+
+        public EventRegistrationContext(IDBContextDependencies DBContextDependencies) : base(DBContextDependencies)
+        {
+            // ContextBase handles multi-tenant database connections
+        }
+
+        protected override void OnModelCreating(ModelBuilder builder)
+        {
+            base.OnModelCreating(builder);
+
+            builder.Entity<Models.Event>().ToTable(ActiveDatabase.RewriteName("SZUAbsolventenvereinEvent"));
+            builder.Entity<Models.Response>().ToTable(ActiveDatabase.RewriteName("SZUAbsolventenvereinEventResponse"));
+        }
+    }
+}