Wayfinder: chart the Shopify headless commerce map

The route from "mozimo.in displays Shopify products" to "mozimo.in sells them",
as a plan with a phase spine and gates, plus the open decision tickets that
still shape it and the evidence they rest on.

- .scratch/shopify-headless-commerce/: plan.md (phases and gates), map.md (the
  wayfinder map), 10 open decision tickets
- CONTEXT.md: Storefront / Theme store / Cart / Parity vocabulary
- docs/adr/0001-0003: Checkout stays Shopify-hosted, one Variant per product,
  the checkout domain stays shop.mozimo.in
- docs/research/ and docs/shopify-catalog-inventory.md: verified store facts,
  the Cart API probe, and the catalogue inventory

Raw Shopify doc scrapes under .scratch/shopify-research/ are ignored: they are
working material, not record.

.scratch/shopify-headless-commerce/issues/08-theme-store-channel-audit.md

@@ -0,0 +1,23 @@
+# Audit what points at the Theme store
+
+`Type:` task (HITL)
+`Status:` open
+
+Part of [the map](../map.md).
+
+## Question
+
+What currently sends traffic to `shop.mozimo.in`?
+
+This cannot be answered from the codebase alone, and finding a live campaign pointed at a Theme store URL two days before cutover is the classic way this migration goes wrong. Inventory:
+
+- **In the repo** — every hardcoded `shop.mozimo.in` reference, including the header's account and Bag icons, and any product URL built from the Shopify domain. (The audit should cover this, but the repo half is discoverable now.)
+- **Outside the repo** — paid ad campaigns and their landing URLs, Google and Meta shopping feeds, Instagram and Facebook shop, marketplace listings, email templates, and printed packaging or QR codes.
+
+For each: what it points at, whether a mozimo.in equivalent exists, and whether it needs updating before or after cutover.
+
+This gates Phase 5 and sets how much redirect coverage is actually required.
+
+## Answer
+
+<!-- filled on resolution -->