release(v4.8.8): Issue #17 follow-up - archive the review reports and bump the lockstep version

Merge-workspace review loop (--all-reviewer): round 1 (@d198dd5) claude
agy PASS, grok codex NOT PASS (the same inherited WORKSPACE_ROOT in eleven
more modules; test_orc_onboard's import-time env); fixed in 8b47cc7.
Round 2 claude grok NOT PASS (test_o2_race_free_lock, test_o1_rebuttal
missed), agy codex PASS; fixed in ac48cb7. Round 3 (@ac48cb7) 4/4 PASS.
Full suite at ac48cb7 on macOS / Python 3.9 / herdr 0.9.3 with
WORKSPACE_ROOT set to an empty sentinel: 1751 passed / 0 failed / 38
skipped; the sentinel stayed empty and the main checkout's shim was not
touched.

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

README.md

@@ -2,7 +2,7 @@
 
 An advanced, high-reliability **Multi-Agent Orchestration & Messaging Backplane** framework built on Herdr and MQTT. It is designed to coordinate, isolate, and audit long-running agent tasks (such as code generation, refactoring, and security reviews) across multiple LLM backend clients (`claude`, `agy`, `hermes`, `grok`, `opencode`, `codex`).
 
-[![Version: v4.8.7](https://img.shields.io/badge/version-v4.8.7-blue.svg)](VERSIONS.md)
+[![Version: v4.8.8](https://img.shields.io/badge/version-v4.8.8-blue.svg)](VERSIONS.md)
 
 ---