Add driftless to Autonomous Loop Runners

[mizan0515]

Adds driftless to the Autonomous Loop Runners section — it implements the "keep running until done" pattern.

What it is: a non-developer-operable overnight loop that drives both Claude Code and Codex from one source of truth. You give a goal in plain language; it surveys open issues, runs parallel workers, self-recovers from worker failures, and opens/merges PRs behind human-only gates. It runs in a repo-local isolated home (CLAUDE_CONFIG_DIR/CODEX_HOME pointed inside the repo) so it never reads or mutates your host-global config.

Why this section: the default mode is continuous improvement until the backlog is exhausted (a sentinel line, not a status word, ends the loop), with a containment gate, mirror-parity between the two tool profiles, and an exhaustion-ledger so "done" can't hide unfinished work.

• Repo: https://github.com/mizan0515/driftless
• MIT, public, CI green (Windows + Linux). One entry, alphabetical placement in the section.

Thanks for maintaining the list!