Add metadata.json

metadata.json

@@ -0,0 +1,14 @@
+{
+  "READY": true,
+  "name": "ProtoGate_Prostate_GE",
+  "task": "binary",
+  "num_classes": 2,
+  "cat_idx": [],
+  "num_samples": 102,
+  "num_features": 5966,
+  "imbalance_ratio": 1.04,
+  "description": "Gene expression dataset from ProtoGate benchmark (source: Prostate_GE.mat)",
+  "source": "ProtoGate",
+  "label": "transcriptomics",
+  "split_strategy": "cv"
+}