{
  "feature_id": "F-087",
  "verdict": "APPROVED",
  "trace": [
    {
      "acceptance": "On the product page, the quantity stepper max is the current stock; typing a value > stock is rejected with a clear message",
      "result": "PASS",
      "evidence": "AddToCart component sets max={stock} on the input and short-circuits when qty > stock."
    },
    {
      "acceptance": "The 'Add to cart' button is disabled (or shows an error) when the entered quantity exceeds stock",
      "result": "PASS",
      "evidence": "disabled when stock === 0; submit also blocks over-stock with error message."
    },
    {
      "acceptance": "In the cart, each line quantity input has max = current stock for that variant",
      "result": "PASS",
      "evidence": "/carrito fetches stock per variant; input max={max}; updateQty rejects when over."
    },
    {
      "acceptance": "Trying to set qty > stock in the cart shows an inline error and keeps the previous value (or caps it)",
      "result": "PASS",
      "evidence": "updateQty returns early after setError(...) without mutating items[]."
    },
    {
      "acceptance": "The cart totals and checkout use the capped quantity",
      "result": "PASS",
      "evidence": "items array is the source of truth; total recomputed from it."
    },
    {
      "acceptance": "If stock changes between page load and add-to-cart, the API rejects the overflow with a 409 and the UI shows a clear message",
      "result": "PASS",
      "evidence": "Backend cart-service throws InsufficientCartStockError; route returns 409 INSUFFICIENT_STOCK; UI parses the message."
    },
    {
      "acceptance": "verify.sh is green",
      "result": "PASS",
      "evidence": "tsc exit 0; vitest 3/3."
    }
  ],
  "regression_checks": [
    "Existing /cart endpoints still work",
    "Pricing/Promotions integration in CartService.toView unchanged"
  ],
  "verdict_reason": "All acceptance criteria trace to PASS.",
  "reviewer": "qa",
  "reviewed_at": "2026-08-20T04:18:00Z",
  "agent": "qa"
}