release(v4.7.0): bump framework and eight skills to 4.7.0 in lockstep; archive PR #29 reviews

Issue #21 items 4, 5, 7 (worktree helpers, review identity, acceptance
A1-A8), #20 test isolation, #27 .gitignore managed block, #28 host
portability. VERSIONS.md carries the entry; the eight review reports of
PR #29 (two rounds plus the codex re-review) are archived under
.agents/reports/<session>/.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff

.agents/skills/multi-agent-mux-monitor/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: multi-agent-mux-monitor
 description: "Run a long-lived reconciler that watches .mam/agent-sessions.yaml against the actual herdr/agent runtime state and reconciles them. Use when you want live visibility into which agent sessions are running, which are dead, which have stale YAML entries, and which have new session ids that haven't been recorded yet. Runs as a persistent loop (`reconcile.sh --subscribe`) that keeps going until it times out, idles out, or is interrupted."
-version: 4.6.0
+version: 4.7.0
 author: godopu
 license: MIT
 platforms: [linux, macos]