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.

src/Payment/Gateway/MockGateway.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Payment\Gateway;
+
+class MockGateway implements PaymentGatewayInterface
+{
+    public function getName(): string { return 'mock'; }
+
+    public function initiate(int $amountRials, string $orderId, string $callbackUrl): PaymentInitResult
+    {
+        $redirectUrl = $callbackUrl . '&mock=1&ResCode=0&RefId=MOCK-' . $orderId;
+        return new PaymentInitResult(true, redirectUrl: $redirectUrl, token: 'MOCK-' . $orderId);
+    }
+
+    public function verify(array $callbackData): PaymentVerifyResult
+    {
+        $mock    = $callbackData['mock'] ?? '0';
+        $resCode = $callbackData['ResCode'] ?? ($callbackData['State'] ?? '');
+
+        if ($mock !== '1' && $mock !== 1) {
+            return new PaymentVerifyResult(false, errorMessage: 'mock callback مجاز نیست');
+        }
+
+        $refId = $callbackData['RefId'] ?? $callbackData['order_id'] ?? 'MOCK-REF';
+        return new PaymentVerifyResult(true, referenceId: $refId);
+    }
+}