Add: Check server status before running a task, wait until available
Opt: Add request headers and calm the users
Fix: Config won't update after server recovered
Update argument.yaml
Revert inappropriate changes and make code more pretty
Fix: Check server after get_next_task
Fix: KeyError when Alas restarts after recovery
Fix: fix bug and optimize code; Add: EN support
Fix typo; Optimize API calls
Opt: Further reduce API calls
Opt: Use random UA