docs(changelog): v2.6.7-interrupt-guard + reconcile roadmap/review/openspec
CHANGELOG entry for v2.6.7. Plus the session's doc reconciliation: roadmap shipped record synced through v2.6.7 (v2.3 lifecycle marked shipped, relicense AGPL->MIT batch, fork-sweep lift items, claude-agent-sdk SessionStore, ACP package fix); boocode_code_review_v2 (two fork sweeps, relicense decision = 3 AGPL files, jinja gate green); openspec v2-3 reconciled to shipped (v2.5.4-v2.5.13); openspec v2-6 Phase 0/1 + P1.5 shipped, F.1 done, remaining-phase plan + lift sources.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>