release(v4.6.0): bump framework and eight skills to 4.6.0 in lockstep; archive PR #22 merge-side reviews

Issue #21 phase-1 prerequisites (PR #22) add loop runner options and the
control-plane module: MINOR. VERSIONS.md gains the v4.6.0 entry, the
archived design reviews lose their markdown trailing whitespace so
`git diff --check` is clean, and the three merge-side PASS reports
(claude, agy, codex @ 4a81d15) are archived under .agents/reports/.

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: v4.5.0](https://img.shields.io/badge/version-v4.5.0-blue.svg)](VERSIONS.md)
+[![Version: v4.6.0](https://img.shields.io/badge/version-v4.6.0-blue.svg)](VERSIONS.md)
 
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