Revert "Drop files from .gitignore"

This reverts commit 84ad43af76.

api/obj/Debug/net10.0/api.MvcApplicationPartsAssemblyInfo.cs

@@ -0,0 +1,16 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: Microsoft.AspNetCore.Mvc.ApplicationParts.ApplicationPartAttribute("Microsoft.AspNetCore.OpenApi")]
+
+// Generated by the MSBuild WriteCodeFragment class.
+