feat: enhance staff management and payment gateway features

- Fix national code handling in staff creation and updates to support Persian digits.
- Update ClinicStaff entity to allow longer national codes (up to 15 characters).
- Implement support for clinic secretaries in SecretaryController, allowing creation without a doctor UUID.
- Add a new endpoint to retrieve doctors associated with a clinic for secretary management.
- Improve appointment management by ensuring doctors are selectable even when no appointments exist.
- Extend PatientController to allow secretaries to create patient records if they have the appropriate permissions.
- Introduce a PriceInput component for better price formatting in forms, supporting Persian digits.
- Add a MockGateway for testing payment processes without real transactions.
- Enhance SMS settings management with an approval flow for post-visit text messages, including new fields for pending text and status.
- Update migrations to reflect changes in database schema for national codes and SMS settings.

assets/admin/components/ui/PriceInput.tsx

@@ -0,0 +1,63 @@
+import React, { useEffect, useState } from 'react';
+
+interface PriceInputProps {
+  value: number | '';
+  onChange: (value: number) => void;
+  placeholder?: string;
+  className?: string;
+  style?: React.CSSProperties;
+  disabled?: boolean;
+  min?: number;
+}
+
+const PERSIAN_TO_LATIN: Record<string, string> = {
+  '۰': '0', '۱': '1', '۲': '2', '۳': '3', '۴': '4',
+  '۵': '5', '۶': '6', '۷': '7', '۸': '8', '۹': '9',
+  '٠': '0', '١': '1', '٢': '2', '٣': '3', '٤': '4',
+  '٥': '5', '٦': '6', '٧': '7', '٨': '8', '٩': '9',
+};
+
+function toLatinDigits(str: string): string {
+  return str.replace(/[۰-۹٠-٩]/g, (ch) => PERSIAN_TO_LATIN[ch] ?? ch);
+}
+
+function formatDisplay(num: number): string {
+  if (num === 0) return '';
+  return new Intl.NumberFormat('fa-IR').format(num);
+}
+
+export default function PriceInput({
+  value,
+  onChange,
+  placeholder = '0',
+  className,
+  style,
+  disabled,
+  min = 0,
+}: PriceInputProps) {
+  const [display, setDisplay] = useState(() => (value !== '' && value > 0 ? formatDisplay(value) : ''));
+
+  useEffect(() => {
+    setDisplay(value !== '' && Number(value) > 0 ? formatDisplay(Number(value)) : '');
+  }, [value]);
+
+  const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const raw = toLatinDigits(e.target.value).replace(/[^0-9]/g, '');
+    const num = raw === '' ? 0 : Math.max(min, parseInt(raw, 10));
+    onChange(num);
+    setDisplay(num > 0 ? formatDisplay(num) : '');
+  };
+
+  return (
+    <input
+      type="text"
+      inputMode="numeric"
+      value={display}
+      onChange={handleChange}
+      placeholder={placeholder}
+      className={className}
+      style={{ textAlign: 'left', direction: 'ltr', ...style }}
+      disabled={disabled}
+    />
+  );
+}