intake: the needs-header card names what is missing and gives the right advice for it

A Woolworths eReceipt SCREENSHOT has no date anywhere on it — store, total,
items, payment, savings, not one date (2026-08-22, batch 60ed68be…) — while
the app's own Share button sends the raw receipt with the date line. The card
said 'share the top of the screen too', which is delivery-app advice and sends
the person back for a shot that cannot exist. Now: the missing field by name,
and for a dateless in-store receipt, the Share button or pantry's own upload.

src/__tests__/unit/intake-rules.test.ts

@@ -403,3 +403,17 @@ describe("the prompt carries no real merchant to echo", () => {
     expect(ORDER_ITEM_PROMPT).toMatch(/Do not construct a plausible order/);
   });
 });
+
+describe("needsHeaderCard", () => {
+  it("names the missing field and sends a dateless in-store screenshot to the app's Share button", async () => {
+    const { needsHeaderCard } = await import("@/lib/intake-blocks");
+    const dateless = needsHeaderCard(["date"], "woolworths").text;
+    expect(dateless).toContain("no date");
+    expect(dateless).toContain("Share button");
+    expect(dateless).not.toContain("total");
+    const delivery = needsHeaderCard(["total"], "uber_eats").text;
+    expect(delivery).toContain("no total");
+    expect(delivery).toContain("part of the screen");
+    expect(needsHeaderCard().text).toContain("total or date");
+  });
+});