nx_inventory.nx

nx_inventory.nx -- LIB: the UNIVERSAL inventory / supply-chain substrate (operator: "the inventory and other systems hardware-rung-up to manage any and all supply chains -- cataloging for a will all the things a person owns, what's in the pantry and when it's expiring, what can I make, meal planning"). ONE domain-agnostic item store; the pantry, an estate/will asset catalog, and any other supply chain are just different `domain`s over the same engine (the inventory analogue of the universal builder). Sovereign (seg-store, NO TSV), INTEGER only (quantities are counts; money is CENTS -- no float), additive (history kept; consume = a new version). Schema (prefix passed in, e.g. knowledge/store/inv-): inv:<domain>:ids -> TAB list of item ids in the domain inv:<domain>:item:<id> -> name <t> category <t> qty <t> unit <t> location <t> value_cents <t> expiry_day <t> owner (expiry_day = integer day number; 0 = non-perishable. owner = beneficiary for a will, or "" for a pantry.) license_tier: ORIGINAL