3cea807353
- Rename permission from '查看云端数据' to '查看云端变量' - Remove cloud constants API and page for agents - Add cloud variable records API for agents (stream type) - Add agent cloud-variables page with full variable details - Add agent cloud-variable records page (read-only) - Update navigation from cloud-data to cloud-variables - Update i18n keys: cloudData -> cloudVariables - Backend returns var_type, default_value, max_records etc. - Records page supports dynamic columns and date filtering