fix: correct WalkPageSize to 100 (actual server PageSize cap) and update comment

DeepDrftPublic/Controllers/CrawlDirectiveController.cs

@@ -25,8 +25,8 @@ namespace DeepDrftPublic.Controllers;
 [ApiController]
 public class CrawlDirectiveController : ControllerBase
 {
-    // A generous page size keeps the walk to a handful of round-trips even for a large catalogue.
-    private const int WalkPageSize = 200;
+    // 100 is the server-side PageSize cap, so this is the largest page the walk can actually get.
+    private const int WalkPageSize = 100;
 
     // The release walk deserializes a bare PagedResult<ReleaseDto> (no ApiResultDto envelope), matching TrackClient.
     private static readonly JsonSerializerOptions JsonOptions = new(JsonSerializerDefaults.Web);