v1.28.0 — First feedback sweep: Inventory REST clone and writes, PO types, price page types, ship-to recipe, read gotchas

The first sweep of the maintainer's verified working notes against these docs. Eleven gaps filed and closed (#175–#185).

• feat: cloning an item through the Inventory REST API; ListPrice and Stockable confirmed writable (#175)
• docs: Inventory REST create: GL accounts when location defaults are missing, DivisionId, discount groups on appended locations (#176)
• docs: the item header's default product group has no API write path (#177)
• fix: po_type B is a buyer-keyed regular PO; source_type codes and deleted-PO state (#178)
• fix: price page type 212 is Item; page-type table completed from stored pages (#179)
• docs: assembly create defaults and disabled fields (#180)
• docs: adding a price library in the Customer window (#181)
• feat: recipe: create a ship-to (#182)
• docs: kit and assembly cost reporting without double-counting (#183)
• docs: oe_line_po stale links and how to join it (#184)
• docs: OData read gotchas: adjustment cost, dropdown labels, labor actuals, column names (#185)

Full detail in the changelog.