Ajustes na documentação e remanejamento dos folders

apps/agent_gateway/app/governance/audit.py

@@ -0,0 +1,14 @@
+from __future__ import annotations
+
+import json
+import logging
+from typing import Any
+
+logger = logging.getLogger("agent_gateway.governance")
+
+
+def audit_event(name: str, payload: dict[str, Any]) -> None:
+    safe = dict(payload)
+    if "message" in safe:
+        safe["message_len"] = len(str(safe.pop("message") or ""))
+    logger.info("%s %s", name, json.dumps(safe, ensure_ascii=False, default=str))