refactor: centralize advisory LLM audit policy

Author: fajarnugraha37

global-template/docgen/lib/audit-policy.mjs

@@ -0,0 +1,12 @@
+export function advisoryLlmAuditSummary(summary, config = {}) {
+  if (!summary || config.audit?.blockOnLlmFindings === true) return null;
+  const deterministicFailures = Number(summary.deterministicFailures ?? 0);
+  const highRiskFindings = Number(summary.highRiskFindings ?? 0);
+  if (deterministicFailures !== 0 || highRiskFindings <= 0) return null;
+  return {
+    ...summary,
+    pass: true,
+    llmFindingsBlocking: false,
+    advisoryHighRiskFindings: highRiskFindings
+  };
+}