Stock snapshots and freshness

Inventory is only shown as live after Shopify, BigCommerce, B2B, and legacy event sources are connected and replay/idempotency semantics are known.

SKU	Location	On hand	Reserved	Available	Freshness	Event trace
SOURCE-PENDING-SHOPIFY	Shopify locations pending	pending	pending	pending	pending-integration	event contract pending
BC-B2B-PENDING	BigCommerce B2B locations pending	pending	pending	pending	pending-integration	event contract pending