feat: 收口通知原因语义与留痕校验

apps/audit/services.py

@@ -5,6 +5,9 @@ from apps.documents.models import SubmissionBatch
 from .models import AgentAuditLog, NotificationRecord
 
 
+SUPPORTED_NOTIFY_REASONS = {"task_completed", "task_failed"}
+
+
 def create_audit_log(
     scenario_id: str,
     scenario_name: str,
@@ -84,6 +87,8 @@ def create_notification_record(
     V1 先把通知载荷和结果状态稳定落库，
     真实飞书发送可在后续阶段接入。
     """
+    if notify_reason not in SUPPORTED_NOTIFY_REASONS:
+        raise ValueError(f"notify_reason 不受支持：{notify_reason}")
     return NotificationRecord.objects.create(
         batch_id=batch_id,
         conversation_id=conversation_id,