Add dataset metadata

dataset_info.json

@@ -0,0 +1,29 @@
+{
+  "total_samples": 1096,
+  "dataset_name": "IntraOral_Gingivitis_Image_Captioning",
+  "created_at": "2025-06-25T11:42:40.377993",
+  "image_columns": [
+    "Image"
+  ],
+  "audio_columns": [],
+  "subsets": [],
+  "splits": {
+    "default": {
+      "train": {
+        "num_samples": 732,
+        "num_shards": 37,
+        "shard_length": 20
+      },
+      "test": {
+        "num_samples": 182,
+        "num_shards": 10,
+        "shard_length": 20
+      },
+      "validation": {
+        "num_samples": 182,
+        "num_shards": 10,
+        "shard_length": 20
+      }
+    }
+  }
+}