Add MediatR, RecActionDto, and ReadRecActionQuery

Added the `MediatR` NuGet package (v13.1.0) to enable the mediator pattern. Updated `ReC.Application.csproj` to include a project reference to `ReC.Domain`.

Introduced `RecActionDto` as a Data Transfer Object (DTO) for representing "RecAction" details, including properties for endpoints, authentication, and SQL connections.

Added `ReadRecActionQuery` to handle queries for retrieving `RecActionDto` objects, leveraging MediatR. This query filters results based on `ProfileId`.

src/ReC.Application/Dto/RecActionDto.cs

@@ -0,0 +1,60 @@
+namespace ReC.Application.Dto;
+
+public class RecActionDto
+{
+    public long? ActionId { get; init; }
+
+    public long? ProfileId { get; init; }
+
+    public string? ProfileName { get; init; }
+
+    public string? ProfileType { get; init; }
+
+    public byte? ProfileSequence { get; init; }
+
+    public long? EndpointId { get; init; }
+
+    public string? EndpointUri { get; init; }
+
+    public long? EndpointAuthId { get; init; }
+
+    public string? EndpointAuthType { get; init; }
+
+    public string? EndpointAuthApiKey { get; init; }
+
+    public string? EndpointAuthApiValue { get; init; }
+
+    public string? EndpointAuthApiKeyAddTo { get; init; }
+
+    public string? EndpointAuthToken { get; init; }
+
+    public string? EndpointAuthUsername { get; init; }
+
+    public string? EndpointAuthPassword { get; init; }
+
+    public string? EndpointAuthDomain { get; init; }
+
+    public string? EndpointAuthWorkstation { get; init; }
+
+    public short? EndpointParamsId { get; init; }
+
+    public short? SqlConnectionId { get; init; }
+
+    public string? SqlConnectionServer { get; init; }
+
+    public string? SqlConnectionDb { get; init; }
+
+    public string? SqlConnectionUsername { get; init; }
+
+    public string? SqlConnectionPassword { get; init; }
+
+    public string? RestType { get; init; }
+
+    public string? PreprocessingQuery { get; init; }
+
+    public string? HeaderQuery { get; init; }
+
+    public string? BodyQuery { get; init; }
+
+    public string? PostprocessingQuery { get; init; }
+}

src/ReC.Application/ReC.Application.csproj

@@ -6,4 +6,12 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="MediatR" Version="13.1.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ReC.Domain\ReC.Domain.csproj" />
+  </ItemGroup>
+
 </Project>

src/ReC.Application/RecActions/Queries/ReadRecActionQuery.cs

@@ -0,0 +1,9 @@
+using MediatR;
+using ReC.Application.Dto;
+
+namespace ReC.Application.RecActions.Queries;
+
+public class ReadRecActionQuery : IRequest<IEnumerable<RecActionDto>>
+{
+    public int ProfileId { get; init; }
+}