update swagger implementation

VigilCareRecordsAPI/Models/Records/Batch/BatchListResponse.cs

@@ -0,0 +1,8 @@
+/// <summary>Paginated batch list returned by GET /api/v1/digitization-batches.</summary>
+public record BatchListResponse(
+    IReadOnlyList<BatchDetailResponse> Items,
+    int Page,
+    int PageSize,
+    int TotalCount,
+    int TotalPages
+);

VigilCareRecordsAPI/Models/Records/Batch/CreateBatchForm.cs

@@ -0,0 +1,24 @@
+using System.ComponentModel.DataAnnotations;
+
+/// <summary>
+/// Multipart form for batch creation. Combines the uploaded scan with batch metadata
+/// so Swagger documents a single <c>multipart/form-data</c> request.
+/// </summary>
+public class CreateBatchForm
+{
+    /// <summary>PDF, JPEG, or PNG scan (max 25 MB).</summary>
+    [Required]
+    public IFormFile File { get; set; } = null!;
+
+    /// <summary>Batch type literal, e.g. PATIENT_REGISTRATION or ENCOUNTER_SUMMARY.</summary>
+    [Required]
+    public string BatchType { get; set; } = null!;
+
+    /// <summary>BACKFILL (default) or LIVE_CAPTURE.</summary>
+    public string? Track { get; set; }
+
+    /// <summary>Optional patient link used for duplicate-document detection.</summary>
+    public Guid? PatientId { get; set; }
+
+    public CreateBatchRequest ToMetadata() => new(BatchType, Track, PatientId);
+}