Initial commit: import from sinmb79/Gov-chat-bot

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/services/audit.py

@@ -0,0 +1,39 @@
+"""
+감사 로그 기록 헬퍼.
+표준 action: faq.create|faq.update|faq.delete
+             doc.upload|doc.approve|doc.delete
+             user.restrict|user.unblock
+             crawler.approve|crawler.reject
+             config.update
+"""
+from typing import Optional
+
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.audit import AuditLog
+
+
+async def log_action(
+    db: AsyncSession,
+    tenant_id: str,
+    actor_id: str,
+    actor_type: str,  # 'admin_user' | 'system_admin'
+    action: str,
+    target_type: Optional[str] = None,
+    target_id: Optional[str] = None,
+    diff: Optional[dict] = None,
+    ip_address: Optional[str] = None,
+) -> AuditLog:
+    entry = AuditLog(
+        tenant_id=tenant_id,
+        actor_id=actor_id,
+        actor_type=actor_type,
+        action=action,
+        target_type=target_type,
+        target_id=target_id,
+        diff=diff,
+        ip_address=ip_address,
+    )
+    db.add(entry)
+    await db.commit()
+    return entry