fix: learn_from_workorder 创建知识条目时继承工单的 tenant_id

src/knowledge_base/knowledge_manager.py

@@ -100,6 +100,7 @@ class KnowledgeManager:
                         question=question,
                         answer=answer,
                         category=work_order.category,
+                        tenant_id=work_order.tenant_id,
                         confidence_score=work_order.satisfaction_score or 0.5,
                         usage_count=1,
                         vector_embedding=embedding_json