Add lightweight image viewer preview

README.md

@@ -14,6 +14,10 @@ tags:
 size_categories:
 - 100K<n<1M
 configs:
+- config_name: preview
+  data_files:
+  - split: train
+    path: preview/train.parquet
 - config_name: decisions
   data_files:
   - split: train
@@ -39,6 +43,11 @@ unique, while `id` identifies the underlying decision and may repeat.
 
 ## Configurations
 
+### `preview`
+
+A small image gallery for the Hub dataset viewer. The complete normalized
+tables are in `decisions` and `images`.
+
 ### `decisions`
 
 One row per sampled training reference. `image_ids` contains ordered content

preview/train.parquet

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0e6db69f8b804a2a16ee4cd3379e1c0613cc8a21e68858c0e127730efd9b106d
+size 11591472

release_stats.json

@@ -26,5 +26,8 @@
  },
  "mix_config_sha256": "632255ca91150dd16e46f0717bb2433866d38bc5d9a48656ba1aa3d07c6b483a",
  "built_at": "2026-11-05T07:25:25",
- "total_parquet_bytes": 30054581972
+ "total_parquet_bytes": 30054581972,
+ "preview_rows": 64,
+ "preview_parquet_bytes": 11591472,
+ "total_release_bytes": 30066181175
 }