docs(affirmation): refresh AFFIRMATION + add 2026-06-19 status tables

Re-anchor AFFIRMATION.adoc to claude/ecstatic-wright-OBEvx @ c97d0c4,
verified green this session under Agda 2.6.3 + stdlib 2.3 + absolute-zero
(All.agda / Smoke.agda / characteristic/All.agda exit 0; kernel-guard PASS;
postulate declarations confined to the two unwired fenced modules). Add
docs/status/STATUS-2026-06-19.adoc: the musts / intends / wishes table with the
normative MUST = the Oikos accounting DSL, echo-types positioned as the verified
proof companion (general EchoAggregation #175).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VwbFNQJw23tW8tqM7utWku

Author: claude