feat: 31 new tests, metrics LLM counters, Dockerfile caching, Makefile targets, compose limits, code fixes

guarddog_nexus/core/llm.py

@@ -23,12 +23,13 @@ _REPORT_DEFAULTS = {
 
 
 def _validate_report(report: dict) -> dict:
+    result = dict(report)
     for field, default in _REPORT_DEFAULTS.items():
-        if not report.get(field):
-            report[field] = default
-    if report["verdict"] not in ("safe", "suspicious", "malicious", "unknown"):
-        report["verdict"] = "unknown"
-    return report
+        if not result.get(field):
+            result[field] = default
+    if result["verdict"] not in ("safe", "suspicious", "malicious", "unknown"):
+        result["verdict"] = "unknown"
+    return result
 
 
 def _build_user_message(finding: dict) -> str: