rdmsm4x changelog — session close-out: email-osint, xNamed 55f505d fleet rollout, PRD handoff

• Session: claude@rdmsm4x 37d5607f (dev-76), 2026-09-28 17:43 EDT → 2026-09-28 19:57:00 EDT. Closed for a reboot at Rich's request.
• xNamed 55f505d (FEAT-20260928-03: account naming, RDAP availability, WHOIS, DoH DNS, ICANN Lookup links) installed on all 6 Macs; every host SIG-OK, binary sha256 2bd4c4ed…8f0d, launched with a live pid. Intel hosts ran xNamed for the first time.
• Re-verified: 34 tests/4 suites, 0 failures; CLI acceptance pass; lipo x86_64 arm64; minos 26.0.
• Handed Rich's PRD + Q&A request to the xNamed session (xnamed-70, b7f436a7) as DOC-20260928-05; it claimed it.
• Pushed at close (fleet + backup equal HEAD): concepts/email-osint 5d55660, issues 8482c03, fleet/maintenance d0b6aca, apps/xNamed f048316.
• Open: DEC-20260928-07 (email footprint audit; recommend no), DOC-20260928-05 (PRD, owned by the xNamed session), manual click-through of xNamed's 3 new tabs.