refactor: rename Api project to Web

- HrynCo.NotificationService.Api -> HrynCo.NotificationService.Web
- HrynCo.NotificationService.Api.IntegrationTests -> HrynCo.NotificationService.Web.IntegrationTests
- Updated slnx, docker-compose, project references, and namespaces
- Project serves both REST API and admin UI

Ref: IT-628

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

HrynCo.NotificationService.Web/Controllers/EmailChannels/CreateEmailChannelRequest.cs

@@ -0,0 +1,14 @@
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+
+namespace HrynCo.NotificationService.Web.Controllers.EmailChannels;
+
+public sealed record CreateEmailChannelRequest(
+    string ServiceName,
+    int Priority,
+    EmailChannelType ChannelType,
+    EmailChannelSettings Settings,
+    int? DailyLimit,
+    int? MonthlyLimit,
+    int WarnThresholdPercent,
+    bool IsActive
+);

HrynCo.NotificationService.Web/Controllers/EmailChannels/EmailChannelsController.cs

@@ -0,0 +1,77 @@
+using HrynCo.NotificationService.Web.Infrastructure;
+using HrynCo.NotificationService.Services.EmailChannels.Create;
+using HrynCo.NotificationService.Services.EmailChannels.Delete;
+using HrynCo.NotificationService.Services.EmailChannels.Get;
+using HrynCo.NotificationService.Services.EmailChannels.GetByService;
+using HrynCo.NotificationService.Services.EmailChannels.Update;
+using MediatR;
+using Microsoft.AspNetCore.Mvc;
+
+namespace HrynCo.NotificationService.Web.Controllers.EmailChannels;
+
+[Route("api/v1/email-channels")]
+public sealed class EmailChannelsController : ApiControllerBase
+{
+    public EmailChannelsController(IMediator mediator) : base(mediator) { }
+
+    [HttpGet]
+    public async Task<IActionResult> GetAll([FromQuery] string serviceName, CancellationToken cancellationToken)
+    {
+        var result = await Mediator.Send(new GetEmailChannelsQuery(serviceName), cancellationToken);
+        return FromServiceResult(result);
+    }
+
+    [HttpGet("{id:guid}")]
+    public async Task<IActionResult> Get(Guid id, CancellationToken cancellationToken)
+    {
+        var result = await Mediator.Send(new GetEmailChannelQuery(id), cancellationToken);
+        return FromServiceResult(result);
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> Create([FromBody] CreateEmailChannelRequest request, CancellationToken cancellationToken)
+    {
+        var command = new CreateEmailChannelCommand(
+            request.ServiceName,
+            request.Priority,
+            request.ChannelType,
+            request.Settings,
+            request.DailyLimit,
+            request.MonthlyLimit,
+            request.WarnThresholdPercent,
+            request.IsActive
+        );
+
+        var result = await Mediator.Send(command, cancellationToken);
+
+        if (!result.IsSuccess)
+            return MapServiceError(result.Error!);
+
+        return CreatedAtAction(nameof(Get), new { id = result.Result },
+            new ApiResponse<Guid> { Success = true, Data = result.Result });
+    }
+
+    [HttpPut("{id:guid}")]
+    public async Task<IActionResult> Update(Guid id, [FromBody] UpdateEmailChannelRequest request, CancellationToken cancellationToken)
+    {
+        var command = new UpdateEmailChannelCommand(
+            id,
+            request.Priority,
+            request.Settings,
+            request.DailyLimit,
+            request.MonthlyLimit,
+            request.WarnThresholdPercent,
+            request.IsActive
+        );
+
+        var result = await Mediator.Send(command, cancellationToken);
+        return FromServiceResult(result);
+    }
+
+    [HttpDelete("{id:guid}")]
+    public async Task<IActionResult> Delete(Guid id, CancellationToken cancellationToken)
+    {
+        var result = await Mediator.Send(new DeleteEmailChannelCommand(id), cancellationToken);
+        return FromServiceResult(result);
+    }
+}

HrynCo.NotificationService.Web/Controllers/EmailChannels/UpdateEmailChannelRequest.cs

@@ -0,0 +1,12 @@
+using HrynCo.NotificationService.DAL.Abstract.Providers;
+
+namespace HrynCo.NotificationService.Web.Controllers.EmailChannels;
+
+public sealed record UpdateEmailChannelRequest(
+    int Priority,
+    EmailChannelSettings Settings,
+    int? DailyLimit,
+    int? MonthlyLimit,
+    int WarnThresholdPercent,
+    bool IsActive
+);