修复 画布，mcp服务，搜索，文档的接口

conf/service_conf.yaml

@@ -8,6 +8,10 @@ minio:
   user: 'rag_flow'
   password: 'infini_rag_flow'
   host: 'localhost:9000'
+es:
+  hosts: 'http://localhost:1200'
+  username: 'elastic'
+  password: 'infini_rag_flow'
 os:
   hosts: 'http://localhost:1201'
   username: 'admin'