runCleanCli function
CLI adapter for fdb clean. Accepts no flags; emits one of:
CLEANED (success)
DIRS=<comma-separated list> (success, line 2)
DELETED_ENTRIES=<count> (success, line 3)
ERROR: fdb_helper not found in the running app. ... (no helper)
ERROR: <message> (VM error / generic)
ERROR: unexpected response: <json> (unexpected response)
(AppDiedException rethrown for dispatcher's _formatAppDied) (app died)
Implementation
Future<int> runCleanCli(List<String> args) => runCliAdapter(ArgParser(), args, _execute);