Read receipt lines under the keys the receipt panel renders

The order-details panel reads qty/description/amount from
expense_metadata.line_items. A grocery shop is a receipt like any other, so it
stores the same keys rather than name/quantity/line_total — otherwise the rows
arrive complete and display blank, which is exactly the failure ING-8 names.
unit and category are the two fields a grocery line has and a delivery line does
not; nothing renders them yet and the category composition will.

src/__tests__/integration/receipt-ingest.test.ts

@@ -37,8 +37,8 @@ const colesSplit = () => ({
     { leg_index: 2, amount: 73.82, card_last4: "3302", card_product: "MASTERCARD", class: "card" as const },
   ],
   line_items: [
-    { name: "Pork Loin Roast", quantity: 1, unit: "ea", line_total: 15.86, category: "meat" },
+    { description: "Pork Loin Roast", qty: 1, unit: "ea", amount: 15.86, category: "meat" },
-    { name: "Tomatoes", quantity: 1, unit: "ea", line_total: 98.71, category: "produce" },
+    { description: "Tomatoes", qty: 1, unit: "ea", amount: 98.71, category: "produce" },
   ],
 });
 
@@ -50,7 +50,7 @@ const woolworthsGiftCard = () => ({
   transaction_date: "2026-06-29",
   total: 40.75,
   tender_legs: [{ leg_index: 1, amount: 40.75, card_last4: "0443", card_product: "STORE CARD", class: "gift_card" as const }],
-  line_items: [{ name: "Oat Milk", quantity: 2, unit: "ea", line_total: 40.75, category: "dairy" }],
+  line_items: [{ description: "Oat Milk", qty: 2, unit: "ea", amount: 40.75, category: "dairy" }],
 });
 
 beforeAll(async () => {
@@ -197,7 +197,7 @@ describe("validation — what becomes money", () => {
   });
 
   it("flags but accepts lines that do not sum, because promo rows are skipped by design", async () => {
-    const res = await POST(req({ ...colesSplit(), line_items: [{ name: "One line", line_total: 10 }] }));
+    const res = await POST(req({ ...colesSplit(), line_items: [{ description: "One line", amount: 10 }] }));
     expect(res.status).toBe(200);
     expect((await res.json()).flags.some((f: string) => f.startsWith("line_items_sum_"))).toBe(true);
   });

src/__tests__/integration/receipt-reconcile.test.ts

@@ -38,8 +38,8 @@ const colesSplit = {
     { leg_index: 2, amount: 73.82, card_last4: "3302", card_product: "MASTERCARD", class: "card" },
   ],
   line_items: [
-    { name: "Pork Loin Roast", quantity: 1, unit: "ea", line_total: 15.86, category: "meat" },
+    { description: "Pork Loin Roast", qty: 1, unit: "ea", amount: 15.86, category: "meat" },
-    { name: "Jasmine Rice 1kg", quantity: 1, unit: "ea", line_total: 98.71, category: "pantry_dry" },
+    { description: "Jasmine Rice 1kg", qty: 1, unit: "ea", amount: 98.71, category: "pantry_dry" },
   ],
 };
 

src/lib/receipt-ingestion.ts

@@ -30,11 +30,17 @@ export type TenderLeg = {
   class?: "card" | "gift_card" | "cash" | null;
 };
 
+/**
+ * Same keys the order lane uses, because the panel that renders an itemised receipt reads
+ * `qty`/`description`/`amount` and a grocery shop is a receipt like any other. `unit` and
+ * `category` are the two things a grocery line has and a delivery line does not; nothing
+ * renders them yet, and the intra-transaction category composition will.
+ */
 export type ReceiptLineItem = {
-  name: string;
+  description: string;
-  quantity?: number | null;
+  qty?: number | null;
+  amount?: number | null;
   unit?: string | null;
-  line_total?: number | null;
   category?: string | null;
 };
 
@@ -103,7 +109,7 @@ export function validateReceipt(receipt: ParsedReceipt): string[] {
 
   // Lines are allowed to disagree: promotional rows are deliberately skipped during
   // extraction, so this flags rather than rejects. The money is the tender, not the lines.
-  const lineSum = round2((receipt.line_items ?? []).reduce((total, line) => total + Number(line.line_total || 0), 0));
+  const lineSum = round2((receipt.line_items ?? []).reduce((total, line) => total + Number(line.amount || 0), 0));
   if (receipt.line_items?.length && Math.abs(lineSum - round2(receipt.total)) > 0.02) flags.push(`line_items_sum_${lineSum.toFixed(2)}`);
   if (receipt.tender_legs.length > 1) flags.push("split_tender");
   if (receipt.tender_legs.some((leg) => !leg.class)) flags.push("unclassified_tender");