Own catalogue: sales map, demand model and market advisor (plan)

New docs/catalogue-intelligence.md for Alexander's idea of a catalogue
the plant presses for itself. Why (idle Classic hours ~60k to 160k
records a year at 60 % specials on the doc basis; two-week represses
from the metal archive; Thai catalogue sells in Japan, EM Records,
ZudRangMa), scope (Poy Records as seed; customers' data and press dates
protected), data sources with access terms (Bandcamp ship-to fields,
distributor sell-through clauses, opt-in record passport registrations,
Spotify for Artists, Discogs CC0 dumps; Discogs API marketplace and
want data restricted), ERPNext touchpoints (Licence, Channel Sales
Report, Catalogue Recommendation, geocoded addresses, CRM), PDPA rules
for the map, dashboard views on an open-source map stack, a staged
demand model with a stocking rule for run size, a propose-only advisor
on an open-weights model, phasing, cost estimates, risks and open
decisions.

Backlinks: README (planning documents, layout), roadmap item 28,
digital-factory tool rule, artist-platform repress pre-orders,
production-timeline repress, revenue-model ResurRec Japan.

README.md

@@ -219,6 +219,12 @@ The detail lives in dedicated documents:
   (for artists, labels and any other customer), and optionally launch a
   fan-funded campaign that the plant presses and ships to each fan once
   enough have pre-ordered, with refunds if not
+- [Own catalogue](docs/catalogue-intelligence.md): the idea of a catalogue
+  the plant presses for itself (Poy Records as the seed), with a
+  catalogue dashboard, a map of where the records sell, a demand model
+  that says what to repress and how many, and an advisor agent for
+  market opportunities, all on ERPNext and the open-source fleet; filler
+  for idle press time, not in the business plan
 - [Order a record](docs/order.html): the order tool as a step-by-step
   configurator after the Mobineko pattern (step rail, choices, a large live
   record picture, running price and ship date, a "how to pay" step with
@@ -408,6 +414,7 @@ docs/
 ├── artist-platform.md     Upload, price calculator, fan-funded pressing
 ├── biomass.md             Biomass fuel strategy and the 60 rai coppice idea
 ├── boi.md                 BOI promotion strategy and requirements
+├── catalogue-intelligence.md  Own catalogue: sales map, demand model, advisor
 ├── cnx_vinyl_parametric_payap.FCStd   Payap scenario parametric BIM model
 ├── cnx_vinyl_parametric_payap.png     Top view of the Payap model
 ├── cnx_vinyl_parametric_payap-iso.png Isometric view of the Payap model