spark: add artifact validation script

wizard-work/spark/validate_artifact.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+import json
+import sys
+
+path = '/root/troupe-standup/wizard-work/spark/verification_result_20261025.json'
+try:
+    with open(path) as f:
+        data = json.load(f)
+    if data.get('status') == 'verified' and len(data.get('packages', {})) >= 4:
+        print("VALID")
+        sys.exit(0)
+    else:
+        print("INVALID")
+        sys.exit(1)
+except Exception as e:
+    print(f"ERROR: {e}")
+    sys.exit(1)