fix: address PR review follow-ups

plugin/subminer/process.lua

@@ -187,6 +187,7 @@ function M.create(ctx)
 
 		if action == "start" then
 			table.insert(args, "--background")
+			table.insert(args, "--managed-playback")
 
 			local backend = resolve_backend(overrides.backend)
 			if backend and backend ~= "" then