chore(baseline): add SpotBugs baseline capture

Author: aksOps

scripts/baseline/run-spotbugs.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# Run SpotBugs and capture XML + summary JSON.
+set -euo pipefail
+OUT="docs/superpowers/baselines/2026-04-17/raw"
+mkdir -p "$OUT"
+mvn -B spotbugs:spotbugs 2>&1 | tee "$OUT/spotbugs.log"
+# spotbugsXml.xml default location
+if [[ -f target/spotbugsXml.xml ]]; then
+  cp target/spotbugsXml.xml "$OUT/spotbugs.xml"
+fi
+
+python3 - <<'PY' > "$OUT/spotbugs-summary.json"
+import xml.etree.ElementTree as ET, json, collections, os
+path="docs/superpowers/baselines/2026-04-17/raw/spotbugs.xml"
+if not os.path.exists(path):
+    print(json.dumps({"error":"no spotbugs.xml produced"}, indent=2)); raise SystemExit
+root=ET.parse(path).getroot()
+by_priority=collections.Counter()
+by_category=collections.Counter()
+by_pattern =collections.Counter()
+for b in root.iter("BugInstance"):
+    by_priority[b.attrib.get("priority","?")] += 1
+    by_category[b.attrib.get("category","?")] += 1
+    by_pattern [b.attrib.get("type","?")]     += 1
+print(json.dumps({
+  "total_bugs": sum(by_priority.values()),
+  "by_priority": dict(by_priority),
+  "by_category": dict(by_category),
+  "top_patterns": by_pattern.most_common(20),
+}, indent=2))
+PY
+cat "$OUT/spotbugs-summary.json"