Make References and BatchId required for RecAction invoke

Updated InvokeRecActionViewCommand and InvokeReferencesDto to require non-null References and BatchId. Updated RecActionApi.InvokeAsync to require InvokeReferences and added an overload accepting batchId for convenience. This enforces stricter input validation and aligns client and backend requirements.

src/ReC.Application/RecActions/Commands/InvokeRecActionViewCommand.cs

@@ -18,12 +18,12 @@ namespace ReC.Application.RecActions.Commands;
 public record InvokeRecActionViewCommand : IRequest
 {
     public RecActionViewDto Action { get; set; } = null!;
-    public InvokeReferencesDto? References { get; set; }
+    public required InvokeReferencesDto References { get; set; }
 }
 
 public record InvokeReferencesDto
 {
-    public string? BatchId { get; init; }
+    public required string BatchId { get; init; }
     public string? Reference1 { get; init; }
     public string? Reference2 { get; init; }
     public string? Reference3 { get; init; }

src/ReC.Client/Api/RecActionApi.cs

@@ -24,13 +24,25 @@ namespace ReC.Client.Api
         /// <param name="references">Optional reference values to pass through to all result records.</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> InvokeAsync(int profileId, InvokeReferences references = null, CancellationToken cancellationToken = default)
+        public async Task<bool> InvokeAsync(int profileId, InvokeReferences references, CancellationToken cancellationToken = default)
         {
             var content = references != null ? ReCClientHelpers.ToJsonContent(references) : null;
             var resp = await Http.PostAsync($"{ResourcePath}/invoke/{profileId}", content, cancellationToken);
             return resp.IsSuccessStatusCode;
         }
 
+        /// <summary>
+        /// Invokes a ReC action for the specified profile.
+        /// </summary>
+        /// <param name="profileId">The profile identifier.</param>
+        /// <param name="batchId">Batch 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 Task<bool> InvokeAsync(int profileId, string batchId, CancellationToken cancellationToken = default)
+        {
+            return InvokeAsync(profileId, new InvokeReferences() { BatchId = batchId }, cancellationToken);
+        }
+
         /// <summary>
         /// Retrieves Rec actions.
         /// </summary>