Further improvements on the open hours endpoints

api/App/Endpoints/SystemEndpoints.cs

@@ -11,18 +11,18 @@ public static class SystemEndpoints
     })
     .WithName("GetVersion");
 
-    app.MapGet("/health/db", async (SqliteConnection connection) =>
+    app.MapGet("/health/db", async (Microsoft.Data.Sqlite.SqliteConnection connection) =>
     {
       await connection.OpenAsync();
       await using var command = connection.CreateCommand();
       command.CommandText = "SELECT 1";
       var result = await command.ExecuteScalarAsync();
 
-      return Results.Ok(new
+      return new
       {
         Database = "ok",
         Result = result
-      });
+      };
     })
     .WithName("GetDatabaseHealth");
   }