Catch-up session on Series S rollout, no queue work done. Confirmed EGRESS RETRY DISCIPLINE live and all 11 systems consolidated on Series S. Found and logged K256 (append_legacy code-vs-decade routing bug), worked around by writing LEGACY-20.md directly. Escalation of K256 to Master/Server blocked by inbox-api.php outage this session (301->503).

["Confirmed Series S live across all 11 systems, verified EGRESS RETRY DISCIPLINE (K215/K216) in RULES-REG.md", "Caught up on Master[01] and Travel[95] parallel sessions (Daily->Health->Finance transfer test, June expense gap, Travel identity bug scoped as Travel-specific)", "Found + logged K256: save.php append_legacy routes to LEGACY-02.md instead of canonical LEGACY-20.md", "Worked around K256 by writing session LEGACY entry directly to LEGACY-20.md via file_write_web.php, verified live", "Attempted inbox escalation of K256 to Master[01]/Server[40] -- inbox-api.php down this session (301->503, confirmed not general egress noise), delivery failed", "Updated handoff-20.md to reflect unchanged queue + this session findings"]