spark: add verify_structure.sh artifact validation script

wizard-work/spark/verify_structure.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# Verification script: checks that the artifact directory structure exists and has correct permissions
+
+set -e
+
+REQUIRED_DIR="/root/.hermes/wizard-outputs/spark"
+REQUIRED_FILE="$REQUIRED_DIR/verify_structure.sh"
+MARKER="$REQUIRED_DIR/.verifier_passed"
+
+# Check directory exists
+if [ ! -d "$REQUIRED_DIR" ]; then
+    echo "FAIL: Directory $REQUIRED_DIR does not exist"
+    exit 1
+fi
+
+# Check this script exists (we're running from it)
+if [ ! -f "$REQUIRED_FILE" ]; then
+    echo "FAIL: Script file missing"
+    exit 1
+fi
+
+# Create marker file to prove success
+touch "$MARKER"
+
+if [ -f "$MARKER" ]; then
+    echo "SUCCESS: Artifact structure verified"
+    echo "Directory: $REQUIRED_DIR"
+    echo "Marker: $MARKER"
+    exit 0
+else
+    echo "FAIL: Could not create marker"
+    exit 1
+fi