0.4.7 — positioning fix: the veto is model-agnostic

"Built for cheap/local model agents" was inaccurate. The action-veto is deterministic and model-agnostic — it inspects the tool call at the boundary, so it protects any agent the same way, and the flagship integration is a Claude Code hook (a frontier model). Reframed the description, GitHub About, README, and llms.txt to "for any tool-using agent, from a Claude Code hook to local LLMs". The 7-30B strength is real but belongs to the uncertainty signal (a secondary feature) — now scoped there, not applied to the whole product. No code change. FACTS F9 → 0.4.7.