release(v4.9.3): u1e no longer writes the checkout's .mam/shim/herdr - archive the review reports and bump the lockstep version

Review loop (--review-only, --all-reviewer): round 1 (@3a30d7d) 4/4 PASS;
each reviewer reproduced W1 failing on the pre-fix tree. Seven #50/#55 and
leak modules (112 tests) from a clean worktree left no .mam in the
checkout.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff

README.ko.md

@@ -2,7 +2,7 @@
 
 [herdr](https://herdr.dev)와 MQTT 위에 만든 **다중 에이전트 오케스트레이션·메시징 백플레인**입니다. 장시간 실행되는 코딩 에이전트(`claude`, `agy`, `hermes`, `grok`, `opencode`, `codex`)를 격리된 herdr pane 에서 돌리고, 작업을 추적되는 잡으로 위임하며, 모든 리뷰어가 통과시킬 때까지 planner / creator / reviewer 루프를 돌립니다.
 
-[![Version: v4.9.2](https://img.shields.io/badge/version-v4.9.2-blue.svg)](VERSIONS.md)
+[![Version: v4.9.3](https://img.shields.io/badge/version-v4.9.3-blue.svg)](VERSIONS.md)
 
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