fix(pos-selfpay): direct payment + confirm from modal, no partial payments

project/apps/pos/src/app/(terminal)/page.tsx

@@ -793,6 +793,7 @@ export default function RegisterPage() {
     setShowClearConfirm(false);
     setSelfpayPaymentReady(false);
     setSelfpayEmail('');
+    setShowSelfpayPaymentMethods(false);
   };
 
   const searchCustomers = async (query: string) => {
@@ -1674,17 +1675,8 @@ export default function RegisterPage() {
             ))}
           </div>
         )}
-        {/* POS-SELFPAY-FLOW: confirm button after payment added in selfpay */}
-        {isSelfpayMode && selfpayPaymentReady && !paymentMethod && !showSelfpayPaymentMethods && (
-          <button
-            type="button"
-            onClick={() => void confirmSale()}
-            disabled={processing || cart.length === 0 || paidCents <= 0 || paidCents > totals.total}
-            className="mt-3 w-full min-h-16 rounded-xl bg-[#1B4332] text-lg font-bold text-white disabled:opacity-40"
-          >
-            {processing ? 'Confirmando…' : '✅ Confirmar e imprimir'}
-          </button>
-        )}
+        {/* POS-SELFPAY-FLOW: confirm button no longer needed — direct flow */}
+        {/* (Removed: payment directly triggers confirmSale from the modal) */}
         <div className="mt-3 grid grid-cols-2 gap-2">
           {!isSelfpayMode && (
             <button
@@ -1854,8 +1846,19 @@ export default function RegisterPage() {
                   key={method.id}
                   type="button"
                   onClick={() => {
+                    // POS-SELFPAY-FLOW: no partial payments — directly add full payment and confirm
                     setShowSelfpayPaymentMethods(false);
-                    setPaymentMethod(method);
+                    const allocation: PaymentAllocation = {
+                      id: generateIdempotencyKey(),
+                      methodCode: method.code,
+                      methodLabel: method.label,
+                      kind: method.kind,
+                      amountCents: remainingCents,
+                      ...(method.kind === 'cash' ? { tenderedCents: remainingCents } : {}),
+                      changeCents: 0,
+                    };
+                    setPayments([allocation]);
+                    void confirmSale();
                   }}
                   disabled={remainingCents === 0}
                   className={`min-h-16 rounded-xl px-2 font-bold text-white disabled:opacity-40 ${method.kind === 'cash' ? 'bg-green-600' : method.kind === 'card' ? 'bg-blue-600' : 'bg-slate-700'}`}