:wrench: add ftp host support

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

@@ -89,5 +89,7 @@ CDN_URLS={{ app_cdn_urls }}
 ATTACHMENTS_TEMPORARY_BUCKET_NAME={{ app_attachments_bucket_name }}-t
 ATTACHMENTS_PERMANTENT_BUCKET_NAME={{ app_attachments_bucket_name }}-p
 
+FTP_HOST="{{ app_ftp_host }}"
+
 APP_ICP_CODE="{{ app_icp_code }}"
 APP_MPS_CODE="{{ app_mps_code }}"

deploy/staging/hosts

@@ -80,3 +80,5 @@ app_questionnaire_link="https://wj.qq.com/change-me/"
 
 app_cdn_urls=https://www.change-me.org/downloads
 app_attachments_bucket_name=attachments-staging
+
+app_ftp_host="change-me.org"