Add RecActionApi client for RecAction endpoint operations

Introduced RecActionApi in ReC.Client.Api to provide a typed API client for RecAction endpoints. Includes methods for invoking, retrieving, creating, updating, and deleting Rec actions, with support for cancellation tokens and helper-based serialization. All methods are documented with XML comments.

src/ReC.Client/Api/RecActionApi.cs

@@ -0,0 +1,85 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace ReC.Client.Api
+{
+    /// <summary>
+    /// Provides access to RecAction endpoints.
+    /// </summary>
+    public class RecActionApi
+    {
+        private readonly HttpClient _http;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="RecActionApi"/> class.
+        /// </summary>
+        /// <param name="http">The HTTP client used for requests.</param>
+        public RecActionApi(HttpClient http)
+        {
+            _http = http;
+        }
+
+        /// <summary>
+        /// Invokes a ReC action for the specified profile.
+        /// </summary>
+        /// <param name="profileId">The profile identifier.</param>
+        /// <param name="cancellationToken">A token to cancel the operation.</param>
+        /// <returns><see langword="true"/> if the request succeeds; otherwise, <see langword="false"/>.</returns>
+        public async Task<bool> InvokeRecActionAsync(int profileId, CancellationToken cancellationToken = default)
+        {
+            var resp = await _http.PostAsync($"api/RecAction/invoke/{profileId}", content: null, cancellationToken);
+            return resp.IsSuccessStatusCode;
+        }
+
+        /// <summary>
+        /// Retrieves Rec actions.
+        /// </summary>
+        /// <param name="profileId">Optional profile filter.</param>
+        /// <param name="invoked">Optional invoked filter.</param>
+        /// <param name="cancel">A token to cancel the operation.</param>
+        /// <returns>The HTTP response message.</returns>
+        public Task<HttpResponseMessage> GetRecActionsAsync(long? profileId = null, bool? invoked = null, CancellationToken cancel = default)
+        {
+            var query = ReCClientHelpers.BuildQuery(("ProfileId", profileId), ("Invoked", invoked));
+            return _http.GetAsync($"api/RecAction{query}", cancel);
+        }
+
+        /// <summary>
+        /// Creates a Rec action.
+        /// </summary>
+        /// <typeparam name="T">The payload type.</typeparam>
+        /// <param name="procedure">The payload to send.</param>
+        /// <param name="cancel">A token to cancel the operation.</param>
+        /// <returns>The HTTP response message.</returns>
+        public Task<HttpResponseMessage> CreateRecActionAsync<T>(T procedure, CancellationToken cancel = default)
+            => _http.PostAsync("api/RecAction", ReCClientHelpers.ToJsonContent(procedure), cancel);
+
+        /// <summary>
+        /// Updates a Rec action.
+        /// </summary>
+        /// <typeparam name="T">The payload type.</typeparam>
+        /// <param name="id">The action identifier.</param>
+        /// <param name="procedure">The payload to send.</param>
+        /// <param name="cancel">A token to cancel the operation.</param>
+        /// <returns>The HTTP response message.</returns>
+        public Task<HttpResponseMessage> UpdateRecActionAsync<T>(long id, T procedure, CancellationToken cancel = default)
+            => _http.PutAsync($"api/RecAction/{id}", ReCClientHelpers.ToJsonContent(procedure), cancel);
+
+        /// <summary>
+        /// Deletes Rec actions.
+        /// </summary>
+        /// <typeparam name="T">The payload type containing identifiers.</typeparam>
+        /// <param name="procedure">The payload to send.</param>
+        /// <param name="cancel">A token to cancel the operation.</param>
+        /// <returns>The HTTP response message.</returns>
+        public Task<HttpResponseMessage> DeleteRecActionsAsync<T>(T procedure, CancellationToken cancel = default)
+        {
+            var request = new HttpRequestMessage(HttpMethod.Delete, "api/RecAction")
+            {
+                Content = ReCClientHelpers.ToJsonContent(procedure)
+            };
+            return _http.SendAsync(request, cancel);
+        }
+    }
+}