feat: enhance payment status handling and summary in MyPaymentsPage

- Added support for 'partial' payment status in MyPaymentsPage and related components.
- Updated API responses to include 'paid_rials' and 'summary' for invoices.
- Introduced InvoicePaymentStatus service to derive payment status based on actual payments.
- Enhanced tests to cover new payment scenarios including partial payments and payment methods.
- Updated documentation to reflect changes in payment status and API responses.

assets/admin/pages/MyPaymentsPage.tsx

@@ -18,6 +18,7 @@ import {
 const STATUS_OPTIONS = [
   { value: '', label: 'همه وضعیت‌ها' },
   { value: 'paid', label: 'پرداخت شده' },
+  { value: 'partial', label: 'پرداخت ناقص' },
   { value: 'unsettled', label: 'تسویه نشده' },
 ];
 
@@ -108,7 +109,20 @@ export default function MyPaymentsPage() {
       header: 'تاریخ',
       render: (r) => <span dir="ltr">{formatDate(r.issued_at)} - {formatTime(r.issued_at)}</span>,
     },
-    { key: 'amount_rials', header: 'مبلغ', render: (r) => <span style={{ fontWeight: 600 }}>{formatRial(r.amount_rials)}</span> },
+    {
+      key: 'amount_rials',
+      header: 'مبلغ',
+      render: (r) => (
+        <div>
+          <div style={{ fontWeight: 600 }}>{formatRial(r.amount_rials)}</div>
+          {r.status === 'partial' && (
+            <div style={{ fontSize: 11.5, color: 'var(--text-3)', marginTop: 2 }}>
+              پرداخت‌شده: {formatRial(r.paid_rials)}
+            </div>
+          )}
+        </div>
+      ),
+    },
     { key: 'status', header: 'وضعیت', render: (r) => <StatusBadge type="invoice" value={r.status} /> },
   ];