Commit MWS backend source tree

The ASP.NET Core solution (mws.api/mws.application/mws.domain/
mws.infrastructure) existed only as untracked working files. Adding
it to version control, plus a .gitignore for build output and local
tooling directories, so the CQRS/mediator refactor plan has a real
git history to branch and diff against.

mws.api/Controllers/UsersController.cs

@@ -0,0 +1,20 @@
+using AutoMapper;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Mws.Application.Common;
+using Mws.Application.Auth;
+
+namespace Mws.Api.Controllers;
+
+[ApiController]
+[Route("api/users")]
+[Authorize]
+public class UsersController(IUnitOfWork uow, IMapper mapper) : ControllerBase
+{
+    [HttpGet]
+    public async Task<ActionResult<List<UserDto>>> GetAll([FromQuery] string? q, CancellationToken ct)
+    {
+        var users = await uow.Users.SearchWithRoleAsync(q, 50, ct);
+        return Ok(mapper.Map<List<UserDto>>(users));
+    }
+}