fix(collection-ai): pre-fill only from the chip's tax invoice, AI column only with ai_check

M2: the confirm dialog pre-fill uses the card's newest document (as the
chip) and only when it is a tax invoice.
M3: the AI ticks column (and its min-width) shows only when a row has
ai_check; the POS column stays whenever in_pos is known.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/components/collection-confirm/items-table-ai.test.tsx

@@ -28,6 +28,17 @@ describe("ItemsTable AI layer", () => {
     expect(screen.queryByText(/add to pos/i)).not.toBeInTheDocument();
   });
 
+  it("shows only the POS column (no AI column, no AI min-width) when no row has ai_check", () => {
+    const { container } = render(
+      <ItemsTable rows={[{ ...plain, in_pos: false }]} onCostChange={noop} onSkuChange={noop} onAddToPos={noop} />,
+    );
+    const headers = screen.getAllByRole("columnheader").map((h) => h.textContent);
+    expect(headers).toEqual(["SKU", "Description", "Ord", "Coll", "Cost", "Surplus", "POS"]);
+    expect(container.querySelector("table")?.className).not.toContain("min-w-[860px]");
+    expect(container.querySelectorAll("col")).toHaveLength(7);
+    expect(screen.getByText(/tap the pencil/i).closest("td")).toHaveAttribute("colspan", "7");
+  });
+
   it("adds AI and POS headers when a row has ai_check", () => {
     render(<ItemsTable rows={[makeAiRow()]} onCostChange={noop} onSkuChange={noop} />);
     const headers = screen.getAllByRole("columnheader").map((h) => h.textContent);

src/components/collection-confirm/items-table.tsx

@@ -35,9 +35,10 @@ type Props = {
   /** "Add to POS" click for a line that is not in the POS yet. */
   onAddToPos?: (rowId: string) => void;
   /**
-   * Force the AI + POS columns on or off. Defaults to on when some row
-   * carries an `ai_check` or a known `in_pos`, so a table with neither
-   * renders exactly as before.
+   * Force the AI + POS columns on or off. By default the AI column shows
+   * only when some row carries an `ai_check`, and the POS column when some
+   * row has a known `in_pos`, so a table with neither renders exactly as
+   * before.
    */
   showAi?: boolean;
 };
@@ -178,8 +179,9 @@ export function ItemsTable({
   onAddToPos,
   showAi,
 }: Props) {
-  const aiColumns =
-    showAi ?? rows.some((r) => !!r.ai_check || typeof r.in_pos === "boolean");
+  const aiColumn = showAi ?? rows.some((r) => !!r.ai_check);
+  const posColumn = showAi ?? rows.some((r) => typeof r.in_pos === "boolean");
+  const columnCount = 6 + (aiColumn ? 1 : 0) + (posColumn ? 1 : 0);
   const [edit, setEdit] = useState<EditState | null>(null);
 
   const startCostEdit = (row: ConfirmRow) => {
@@ -269,7 +271,9 @@ export function ItemsTable({
 
   return (
     <table
-      className={`w-full table-fixed text-sm ${aiColumns ? "min-w-[860px]" : "min-w-[640px]"}`}
+      className={`w-full table-fixed text-sm ${
+        aiColumn ? "min-w-[860px]" : posColumn ? "min-w-[750px]" : "min-w-[640px]"
+      }`}
     >
       {/*
         Explicit column widths. `table-fixed` honours these, so a cell
@@ -291,8 +295,8 @@ export function ItemsTable({
         <col className="w-[5rem]" />
         <col className="w-[8rem]" />
         <col className="w-[5rem]" />
-        {aiColumns ? <col className="w-[7rem]" /> : null}
-        {aiColumns ? <col className="w-[7rem]" /> : null}
+        {aiColumn ? <col className="w-[7rem]" /> : null}
+        {posColumn ? <col className="w-[7rem]" /> : null}
       </colgroup>
       <thead>
         <tr className="border-b text-left">
@@ -302,8 +306,8 @@ export function ItemsTable({
           <th className="border-l border-border/60 px-3 py-2 text-right font-medium">Coll</th>
           <th className="px-3 py-2 text-right font-medium">Cost</th>
           <th className="px-3 py-2 text-right font-medium">Surplus</th>
-          {aiColumns ? <th className="px-3 py-2 font-medium">AI</th> : null}
-          {aiColumns ? <th className="px-3 py-2 font-medium">POS</th> : null}
+          {aiColumn ? <th className="px-3 py-2 font-medium">AI</th> : null}
+          {posColumn ? <th className="px-3 py-2 font-medium">POS</th> : null}
         </tr>
       </thead>
       <tbody>
@@ -494,12 +498,12 @@ export function ItemsTable({
               <td className="px-3 py-2 text-right align-top tabular-nums">
                 {surplus > 0 ? `+${surplus}` : "—"}
               </td>
-              {aiColumns ? (
+              {aiColumn ? (
                 <td className="px-3 py-2 align-top">
                   <AiTicks row={row} />
                 </td>
               ) : null}
-              {aiColumns ? (
+              {posColumn ? (
                 <td className="px-3 py-2 align-top text-xs">
                   {row.in_pos ? (
                     row.pos_stock_item_id ? (
@@ -540,7 +544,7 @@ export function ItemsTable({
         */}
         <tr>
           <td
-            colSpan={aiColumns ? 8 : 6}
+            colSpan={columnCount}
             className="px-3 pb-1 pt-2 text-[11px] text-muted-foreground"
           >
             Tap the pencil to edit · Enter saves · Esc cancels

src/lib/collection-ai-card.test.ts

@@ -72,21 +72,39 @@ describe("collection-ai-card", () => {
     expect(cardDocument([makeAiRow({ ai_doc: null })])).toBeNull();
   });
 
-  it("derives invoice defaults from the first row with a document number", () => {
+  it("derives invoice defaults from the card's (newest) tax invoice", () => {
     const rows = [
-      makeAiRow({ id: "1", ai_check: null }),
-      makeAiRow({ id: "2", ai_check: makeCheck({ document_no: "5028256", doc_date: "2026-10-16" }) }),
+      makeAiRow({ id: "1", ai_check: null, ai_doc: null }),
+      makeAiRow({ id: "2", ai_doc: doc("5028256", [], "2026-10-16") }),
     ];
     expect(aiInvoiceDefaults(rows)).toEqual({ number: "5028256", date: "2026-10-16" });
   });
 
+  it("uses the same newest document as the chip", () => {
+    const rows = [
+      makeAiRow({ id: "1", ai_doc: doc("OLD-1", [], "2026-10-10") }),
+      makeAiRow({ id: "2", ai_doc: doc("NEW-2", [], "2026-10-16") }),
+    ];
+    expect(aiInvoiceDefaults(rows)).toEqual({ number: "NEW-2", date: "2026-10-16" });
+  });
+
+  it("never pre-fills from a delivery note", () => {
+    const dn = { ...doc("DN-7", [], "2026-10-16"), doc_type: "delivery_note" as const };
+    const rows = [
+      makeAiRow({ id: "1", ai_doc: doc("INV-1", [], "2026-10-10") }),
+      makeAiRow({ id: "2", ai_doc: dn }),
+    ];
+    // The chip shows the newer delivery note, so nothing is pre-filled.
+    expect(aiInvoiceDefaults(rows)).toBeUndefined();
+  });
+
   it("returns undefined without any document number", () => {
-    expect(aiInvoiceDefaults([makeAiRow({ ai_check: null })])).toBeUndefined();
-    expect(aiInvoiceDefaults([makeAiRow({ ai_check: makeCheck({ document_no: "" }) })])).toBeUndefined();
+    expect(aiInvoiceDefaults([makeAiRow({ ai_check: null, ai_doc: null })])).toBeUndefined();
+    expect(aiInvoiceDefaults([makeAiRow({ ai_doc: doc("", []) })])).toBeUndefined();
   });
 
   it("omits an invalid date", () => {
-    const rows = [makeAiRow({ ai_check: makeCheck({ doc_date: "" }) })];
+    const rows = [makeAiRow({ ai_doc: doc("5028256", [], "") })];
     expect(aiInvoiceDefaults(rows)).toEqual({ number: "5028256" });
   });
 });

src/lib/collection-ai-card.ts

@@ -41,17 +41,20 @@ export function cardDocument(rows: ConfirmRow[]): AiDoc | null {
   return best;
 }
 
-/** Pre-fill for the confirm dialog from the first row whose check has a document number. */
+/**
+ * Pre-fill for the confirm dialog: the number and date of the card's
+ * document (the same newest document the chip shows), only when it is a
+ * tax invoice — a delivery note's number is not the invoice number.
+ */
 export function aiInvoiceDefaults(
   rows: ConfirmRow[],
 ): { number: string; date?: string } | undefined {
-  for (const row of rows) {
-    const number = row.ai_check?.document_no?.trim();
-    if (!number) continue;
-    const date = row.ai_check?.doc_date ?? "";
-    return /^\d{4}-\d{2}-\d{2}$/.test(date) ? { number, date } : { number };
-  }
-  return undefined;
+  const doc = cardDocument(rows);
+  if (!doc || doc.doc_type !== "tax_invoice") return undefined;
+  const number = (doc.document_no ?? "").trim();
+  if (!number) return undefined;
+  const date = doc.doc_date ?? "";
+  return /^\d{4}-\d{2}-\d{2}$/.test(date) ? { number, date } : { number };
 }
 
 /** Toast for an Add to POS response: plain success, or the counts when any row didn't go in. */