feat: add stage 0 foundation

backend/apps/audit/api.py

@@ -0,0 +1,26 @@
+from datetime import datetime
+from typing import Any
+
+from ninja import Router, Schema
+
+from apps.audit.models import OperationAuditLog
+
+router = Router(tags=["audit"])
+
+
+class OperationAuditLogOut(Schema):
+    id: int
+    module: str
+    action: str
+    target_type: str
+    target_id: str
+    request_snapshot: dict[str, Any]
+    result: str
+    ip_address: str | None
+    user_agent: str
+    created_at: datetime
+
+
+@router.get("/operation-logs", response=list[OperationAuditLogOut])
+def list_operation_logs(request):
+    return OperationAuditLog.objects.all()[:100]