Add performance-oracle@1.0.0 with HTTP endpoint for live Wharf consumption

performance_oracle_part@1.0.0.json

@@ -0,0 +1,22 @@
+{
+  "part_id": "aevion.part/performance-oracle@1.0.0",
+  "display_name": "Man in the Arena Oracle",
+  "description": "Live leaderboard of verifiable AI performance on VA Claims Intake and other Coliseum boss battles.",
+  "interface": {
+    "inputs": [],
+    "outputs": [
+      { "name": "leaderboard", "type": "stream<ranking>", "attested": true }
+    ]
+  },
+  "implementation": {
+    "type": "http",
+    "endpoint": "https://huggingface.co/datasets/Aevion-Verifiable-AI/man-in-the-arena-leaderboard/raw/main/leaderboard.json"
+  },
+  "sources": {
+    "receipt_url": "https://huggingface.co/datasets/Aevion-Verifiable-AI/man-in-the-arena-leaderboard/raw/main/receipt.json"
+  },
+  "attestation": {
+    "algorithm": "ML-DSA-65",
+    "receipt_id": "05028766b3afe7373063cd99ef2d9395"
+  }
+}