Own catalogue in a second company; models self-hosted on premises

Decisions (Alexander, 26 Oct 2026): a second company, not the plant
company, holds the catalogue; it owns and licenses titles; language
models are self-hosted on premises.

catalogue-intelligence.md reworked: the catalogue company is a customer
of the plant at arm's length (orders through intake and portal, the
plant's price list, standby pressing offered to every customer, no
moved dates, no data either way, metal in the archive on customer
terms; Revenue Code section 71 bis, 200M THB disclosure threshold per
the OECD profile), its own ERPNext site, the run-size rule on the
plant's price instead of its direct cost, its own advisor instance on
hardware it controls, phasing, cost borne by it, risks, open decisions
(shareholders and Poy Records, working capital, standby terms, where its
systems run).

Mirrors: README (planning bullet, project status), roadmap item 28,
digital-factory (tool rule, language-model row in the open-source
table), artist-platform (standby pressing proposal, pre-orders),
production-timeline, revenue-model, plant-assistant (self-hosted on
premises; catalogue data removed; advisor as a separate instance).

docs/digital-factory.md

@@ -48,6 +48,7 @@ everything we build is open source**, and our own code is published.
 | Edge and backup | Caddy, BorgBackup, ZFS | Apache-2.0, BSD, CDDL |
 | Our applications | the factory application (`cnx-factory`, Rust: axum, SQLx, minijinja, HTMX), the plant overview, the artist platform (name undecided), the plant and business plan calculator, instrument adapters, NixOS modules | ours, to be published |
 | Design and documents | FreeCAD for the plant model, python-docx and LibreOffice for the business plan | LGPL, MIT, MPL-2.0 |
+| Language models | open-weights models, **self-hosted on premises** (decided October 2026): the [plant assistant](plant-assistant.md) on `vinyl-core` or `vinyl-ai`; no hosted AI service | per model; Typhoon 2.5: Apache-2.0 |
 
 - **Our licence is a decision point.** AGPL-3.0 keeps hosted copies of the
   factory application open; Apache-2.0 or MIT is the easiest for another
@@ -711,8 +712,10 @@ is kept outside it.
    own, and keeps its records in ERPNext. A tool that cannot read from or
    write to ERPNext this way is not finished; a tool with its own
    database of business records is not allowed. Machine data is the only
-   exception. The [own catalogue](catalogue-intelligence.md) dashboard,
-   sales map and demand model are planned this way.
+   exception. The [own catalogue](catalogue-intelligence.md) tools follow
+   the same rule in the catalogue company's own ERPNext site; that
+   company is a customer of the plant and reaches it only through the
+   order intake and the portal.
 
 ### Hosting on NixOS