release(v4.7.2): bump framework and eight skills to 4.7.2 in lockstep; archive PR #35 merge-side reviews

Issues #23 and #24: cross-server herdr scope, agent-agnostic start-up
dialogs, onboarding delivery judged by the agent's own started event,
verified rollback. VERSIONS.md carries the entry; the merge-side reports
(round 1: claude/agy/grok; round 2 on 05b0ea4: all four, with identity
sidecars, base f4ba205 -> head 05b0ea4, evidence review-tree) are archived
under .agents/reports/<session>/. The round-1 codex report was lost to the
host sleeping mid-review; its two probes are recorded in the changelog.

Co-Authored-By: Claude Fable 5.1 <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: v4.7.1](https://img.shields.io/badge/version-v4.7.1-blue.svg)](VERSIONS.md)
+[![Version: v4.7.2](https://img.shields.io/badge/version-v4.7.2-blue.svg)](VERSIONS.md)
 
 ---