FR-0002 — Maintain the shopper cart
Statement: The storefront shall allow a shopper to add reviewed products, change quantities, remove items, and observe totals computed from trusted catalog prices.
Rationale: The checkout boundary requires a reviewable order intent.
Status: Proposed; implementation candidate under the bootstrap override.
Owner: Architecture.
Source Feature: ESHOPV1-FT-2 and its cart acceptance outcome.
C4 element: Storefront web.
Task: ESHOPV1-TS-2.
Acceptance evidence: Cart unit tests at application commit 7fd6b88; integrated CI task 1418 succeeded.