The bash :report implementations for the dockerfile, herokuish, lambda, nixpacks, pack, and railpack builders are replaced with a compiled golang binary that collects report keys in parallel and marshals json directly, avoiding the per-key subshell and jq forks that made the bash reports slow. The subcommands/report and root report trigger become symlinks to the compiled binary, while the non-report bash helpers each plugin still relies on are left in place.
