feat: add STATUS.md as session handoff document

[meketreve]

Summary

Adds .wolf/STATUS.md as the single source of truth for resuming work across sessions. Reduces session-resume cost from ~6 file reads (memory.md + cerebrum.md + plan files + code) to a single read.

The pattern emerged from real use: at the end of a quest, the AI moves done items to ✅ and writes the next quest in 🚀. Next session: /clear + "read .wolf/STATUS.md" → context ready in ~2k tokens instead of ~10k.

Changes

File	Change
src/templates/STATUS.md (new)	Template with sections: ✅ Concluído, 🚀 Próxima fase, 📁 Arquitetura ativa, ⚠️ Pendências, 🔧 Comandos
src/templates/OPENWOLF.md	New top-level "STATUS.md — Single Source of Truth" section (MANDATORY rules); Session End checklist now lists STATUS.md update first
src/templates/claude-rules-openwolf.md	Two new rules: read STATUS.md first when resuming, update it when quest finishes or before /clear
src/cli/init.ts	Register STATUS.md in CREATE_IF_MISSING + embedded fallback in generateTemplate()
src/hooks/stop.ts	New checkStatusFreshness() — emits stderr nudge when 3+ code writes happen but STATUS.md mtime predates session.started (or when STATUS.md is missing)

Diffstat: 5 files changed, +127 −3.

Why

Existing files in .wolf/ capture history (memory.md), learnings (cerebrum.md), bugs (buglog.json), structure (anatomy.md). None of them answer the most-asked resume question: "where did we stop and what's next?" Today the user has to grep memory.md, hunt for plan files, and re-read code to reconstruct that.

STATUS.md is the missing handoff doc. It is short, structured, and trivially updated.

Behavior

• Fresh init: STATUS.md is created from template (in CREATE_IF_MISSING, never overwritten on upgrade).
• End of session with code writes but stale STATUS.md: stop.js emits a single-line stderr nudge so Claude updates it on the next turn. Same threshold as the existing buglog/cerebrum nudges (3+ writes).
• Existing projects upgrading: STATUS.md created on next openwolf init or first session that triggers the nudge — no destructive action.

Test plan

• Fresh openwolf init creates .wolf/STATUS.md from template
• Re-run openwolf init (upgrade) does NOT overwrite an existing STATUS.md
• Session with 3+ code writes outside .wolf/ and stale STATUS.md triggers the stderr nudge
• Session with no code writes does NOT trigger the nudge
• tsc and tsc -p tsconfig.hooks.json pass (verified locally — clean)

Notes

Real-world validation: this exact pattern (template + hook + protocol entry) was used in a project this week and dropped resume cost from ~10k tokens to ~2k. Copying the convention upstream so every OpenWolf project gets it by default.