feat: port پرداخت‌ها (payments) tab from tauri to patient detail page

Replace the flat gateway-payment list on the patient detail «پرداخت‌ها» tab with
the session-grouped accordion design ported from clinic-pro-tauri PaymentsSection:

- New SessionPaymentAccordion mirrors the tauri accordion: header (service, date,
  final price, پرداخت شده/تسویه نشده badge) + a settlement line (date, amount,
  method, personnel=doctor) or the «هیچ پرداختی ثبت نشده است.» empty message.
- New PaymentsTab reuses the already-fetched sessions query (real model = one
  payment_method per session) — no extra request, no backend change, no new API.
- Add FilesServicePaymentsCheck icon (verbatim from tauri).
- Remove the now-unused paymentsQ (gateway list), PAYMENT_STATUS map and the dead
  TabList helper (both its callers replaced by the ported card/accordion tabs).
- Tests: SessionPaymentAccordion (paid/unpaid/collapsed/toggle) + updated the page
  payments-tab test to assert session accordions.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

assets/admin/components/icons/FilesServiceIcons.tsx

@@ -193,6 +193,16 @@ export function TabBody({ color = '#616161', style }: IconProps) {
   );
 }
 
+/** Payment check icon (tauri FilesServicePaymentsCheckIcon) — rounded-square tick. */
+export function FilesServicePaymentsCheck({ color = '#2F2F2F', size = 20, style }: IconProps & { size?: number }) {
+  return (
+    <svg xmlns="http://www.w3.org/2000/svg" width={size} height={size} viewBox="0 0 20 20" fill="none" style={style}>
+      <path d="M7.49984 18.3332H12.4998C16.6665 18.3332 18.3332 16.6665 18.3332 12.4998V7.49984C18.3332 3.33317 16.6665 1.6665 12.4998 1.6665H7.49984C3.33317 1.6665 1.6665 3.33317 1.6665 7.49984V12.4998C1.6665 16.6665 3.33317 18.3332 7.49984 18.3332Z" stroke={color} strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" />
+      <path d="M6.4585 9.99993L8.81683 12.3583L13.5418 7.6416" stroke={color} strokeWidth="1.5" strokeLinecap="round" strokeLinejoin="round" />
+    </svg>
+  );
+}
+
 /* ── Turn card info-row icons (tauri CalendarD / ClockP / UserD / status) ───── */
 
 export function CalendarD({ color = '#616161', size = 20, style }: IconProps & { size?: number }) {