Document inter-hub retirement and maturity reassessment

inter-hub is retired (Haskell/IHP build-chain problems), superseded by
core-hub (Python/FastAPI/Postgres). Its capability entry was updated
directly in ~/inter-hub (commit cffdf9e): D3/A1/C1/R0 -> D5/A1/C3/R0,
status: deprecated, relations.related_to -> capability.infotech.core-hub.

core-hub itself is not yet added to reuse-surface's roster/federation
sources -- it postdates the WP-0017 coverage sweep; noted as a follow-up.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

history/2026-07-06-t04-review-summary.md

@@ -1,5 +1,12 @@
 # REUSE-WP-0017-T04 review summary
 
+> **Update 2026-07-07:** `inter-hub` has been retired (Haskell/IHP
+> build-chain problems) and superseded by `core-hub` (Python/FastAPI/Postgres).
+> Its capability entry was reassessed and marked `deprecated` — see
+> `history/2026-07-07-inter-hub-retirement.md`. The D3/A1/C1/R0 vector in
+> the table below is now stale for that one row; current vector is
+> D5/A1/C3/R0.
+
 Prepared for the T05 human-review-and-publish-pass checkpoint. Everything
 below is generated from the actual files committed in each sibling repo
 (not from drafting notes), so it reflects what would actually get pushed