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/ProjectsController.cs

@@ -0,0 +1,55 @@
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Mws.Application.Projects;
+
+namespace Mws.Api.Controllers;
+
+[ApiController]
+[Route("api/projects")]
+[Authorize]
+public class ProjectsController(IProjectService projectService) : ControllerBase
+{
+    [HttpGet]
+    public async Task<ActionResult<List<ProjectDto>>> GetAll(CancellationToken ct)
+    {
+        return Ok(await projectService.GetProjectsAsync(User.GetUserId(), ct));
+    }
+
+    [HttpGet("search")]
+    public async Task<ActionResult<List<ProjectDto>>> Search([FromQuery] string? q, CancellationToken ct)
+    {
+        return Ok(await projectService.SearchAsync(User.GetUserId(), q ?? string.Empty, ct));
+    }
+
+    [HttpGet("{projectId:guid}")]
+    public async Task<ActionResult<ProjectDto>> Get(Guid projectId, CancellationToken ct)
+    {
+        return Ok(await projectService.GetProjectAsync(User.GetUserId(), projectId, ct));
+    }
+
+    [HttpGet("{projectId:guid}/overview")]
+    public async Task<ActionResult<ProjectOverviewDto>> Overview(Guid projectId, CancellationToken ct)
+    {
+        return Ok(await projectService.GetOverviewAsync(User.GetUserId(), projectId, ct));
+    }
+
+    [HttpPost]
+    public async Task<ActionResult<ProjectDto>> Create([FromBody] CreateProjectRequest request, CancellationToken ct)
+    {
+        var result = await projectService.CreateProjectAsync(User.GetUserId(), request, ct);
+        return CreatedAtAction(nameof(Get), new { projectId = result.Id }, result);
+    }
+
+    [HttpPut("{projectId:guid}")]
+    public async Task<ActionResult<ProjectDto>> Update(Guid projectId, [FromBody] UpdateProjectRequest request, CancellationToken ct)
+    {
+        return Ok(await projectService.UpdateProjectAsync(User.GetUserId(), projectId, request, ct));
+    }
+
+    [HttpDelete("{projectId:guid}")]
+    public async Task<IActionResult> Delete(Guid projectId, CancellationToken ct)
+    {
+        await projectService.ArchiveProjectAsync(User.GetUserId(), projectId, ct);
+        return NoContent();
+    }
+}