[carve-out 6/9] Data out of spec dirs: grade data → archive, PORT-REGISTRY → verisim-data, retire SATELLITES.a2ml #495

Child of #479. Rubrics are specs; grades of specific repos are data — mixing them guarantees spec dirs accrete stale point-in-time reports.

• adoption-readiness-grades/AUDIT-FINDINGS-2026-05-28.adoc (521-line session report), publication-pre-flight/ESTATE-AUDIT-BASELINE-2026-03-30.adoc, per-dir SELF-ASSESSMENT.adoc snapshots → docs/archive/ (gitbot-fleet convention) or a new estate-audits repo. Framework-gap items inside them → tracked issues against ARG/FRG v1.1 first.
• PORT-REGISTRY.md assignments → verisim-data, derived from repo configs by a hypatia rule; keep only the uniqueness rule in standards as policy. (Also .md where doc policy says .adoc.)
• SATELLITES.a2ml → retire: it duplicates the generated registry's role without hash verification, still points at absorbed repos as live satellites, and asserts palimpsest "applied-to = all-repos" contradicting the licence directive (flag-only — retire the file via normal PR, no licence-content edits). Fold its execution-pipeline section into the A2ML family docs first.
• toolchain-readiness-grades/references/007/ is NOT here — it is licence-flagged, child 8/9, owner-only.

⚠️ CORRECTION 2026-08-25 — the destination name is wrong, and the repo it names is live, not experimental residue

1. verisim-data does not exist. verisimdb-data does — and it is load-bearing.

Measured 2026-08-25:

• last push 2026-08-25T06:37Z, commit message scan: estate rescan (run 32810961229) (#92) — i.e. it is receiving automated estate scan commits, today
• referenced by 20+ hypatia modules, including the entire merge brain: merge-orchestrate.yml, estate-rescan.yml, lib/verisim_connector.ex, lib/fleet_dispatcher.ex, lib/dispatch_manifest.ex, lib/pattern_registry.ex, lib/outcome_tracker.ex, lib/recipe_matcher.ex, lib/cross_repo_learning.ex
• it is one of the four repos in the base ruleset set

This is the estate's canonical scan store. It is not experimental leftover and must not be retired. The question this issue can legitimately ask is only whether PORT-REGISTRY belongs in it — not whether it should exist.

2. estate-audits should not be a repo at all.

Owner ruling 2026-08-25: an audit sitting inside one of the repo directories is in the wrong place. Audits belong in the appropriate directory in developer/ above the repo trees — i.e. developer/dev-notes/ — not in a new repository. hyperpolymath/estate-audits (404) should not be created.

3. Already done: SATELLITES.a2ml is a deprecation stub; PORT-REGISTRY.md no longer exists on origin/main.

Action for this issue, revised: move grade data to developer/dev-notes/ rather than a new estate-audits repo; decide PORT-REGISTRY's placement within the existing, live verisimdb-data; drop the verisim-data name entirely.