finish CUST-WP-0068: recover, disposition, discard the cache

Close T02–T06 from live hub evidence, disposition clay-borg product
records as not workplans, lift the task-reset restriction in state-hub,
dump and remove the retired local Postgres instance, and record ADR-010's
work-record divergence as closed.

canon/architecture/adr-010-hub-authority-and-local-cache-model.md

@@ -250,3 +250,22 @@ a container every classification write failed. Repository classification could
 own theme — authority that depends on where a process happens to run is not
 authority — and is why "central derives" had never been achievable for this
 record type.
+
+## Outcome (2026-08-28)
+
+> Added by `CUST-WP-0068`. The 2026-08-24 outcome closed the *repository*
+> divergence. The work-record divergence this ADR originally measured — 955
+> local / 649 primary — remained, because the retired instance's database was
+> still load-bearing. That is now closed.
+
+- **Central holds 1167 workplans.** Records that existed only in the cache
+  were re-derived from their files, renamed onto the canonical scheme, or
+  given a written disposition (`docs/recovery/cache-only-disposition-2026-08-28.md`).
+- **No open work record exists only in the cache.** Remaining cache-only
+  slugs are aliases of recovered records, clay-borg product files (not
+  workplans), or prefix-migration residue.
+- **The cache database is discarded.** Final dump
+  `~/backups/state-hub-cache-2026-08-28.dump`. Container `infra-postgres-1`
+  and volume `infra_pg_data` removed. Port 5432 is free.
+- **The local instance is no longer load-bearing for any record type.**
+  Decision 3 is now true in operation, not only in argument.