:wrench: add documents server support

deploy/roles/mint-v2/templates/v1/config.js.j2

@@ -1,4 +1,5 @@
 var RPC_SERVER = "{{ app_rpc_server }}";
+var DOCUMENTS_SERVER = "{{ app_documents_server }}"
 
 /*
   |---------------

deploy/roles/mint-v2/templates/v1/config.php.j2

@@ -3,6 +3,7 @@
 #域名设置
 define("RPC_SERVER","{{ app_rpc_server}}");
 define("ASSETS_SERVER","{{ app_assets_server }}");
+define("DOCUMENTS_SERVER","{{ app_documents_server }}");
 define('APP_KEY','{{ app_secret_key }}');
 /*
 电子邮件设置

deploy/roles/mint-v2/templates/v2/env.j2

@@ -65,6 +65,8 @@ MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
 
 ASSETS_SERVER="{{ app_assets_server }}"
 RPC_SERVER="{{ app_rpc_server }}"
+DOCUMENTS_SERVER="{{ app_documents_server }}"
+
 SNOWFLAKE_DATA_CENTER_ID={{ app_snowflake_data_center_id }}
 SNOWFLAKE_WORKER_ID={{ app_snowflake_worker_id }}