fix: update KavehNegarProvider to use GET requests with query parameters to resolve 431 and idle timeout errors

tests/Sms/KavehNegarProviderTest.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Tests\Sms;
+
+use App\Sms\Provider\KavehNegarProvider;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\NullLogger;
+use Symfony\Component\HttpClient\MockHttpClient;
+use Symfony\Component\HttpClient\Response\MockResponse;
+
+/**
+ * الزام: همه‌ی درخواست‌های کاوه‌نگار باید GET با query باشند (مطابق مستند رسمی)،
+ * هرگز POST/body — GET بدنه ندارد پس Expect: 100-continue و idle timeout رخ نمی‌دهد.
+ */
+class KavehNegarProviderTest extends TestCase
+{
+    /** @var array<string,mixed> */
+    private array $captured = [];
+
+    private function provider(): KavehNegarProvider
+    {
+        $client = new MockHttpClient(function (string $method, string $url, array $options): MockResponse {
+            $this->captured = ['method' => $method, 'url' => $url];
+            return new MockResponse(json_encode(['return' => ['status' => 200]]));
+        });
+
+        return new KavehNegarProvider($client, new NullLogger(), 'TESTKEY', '10004346');
+    }
+
+    public function testSendTemplateUsesGetWithQuery(): void
+    {
+        $ok = $this->provider()->sendTemplate('09120671756', 'clinicpro-otp', ['token' => '1234']);
+
+        $this->assertTrue($ok);
+        $this->assertSame('GET', $this->captured['method']);
+        $this->assertStringContainsString('/TESTKEY/verify/lookup.json', $this->captured['url']);
+        $this->assertStringContainsString('receptor=09120671756', $this->captured['url']);
+        $this->assertStringContainsString('template=clinicpro-otp', $this->captured['url']);
+        $this->assertStringContainsString('token=1234', $this->captured['url']);
+    }
+
+    public function testSendUsesGetNotPost(): void
+    {
+        $this->provider()->send('09120671756', 'hello');
+
+        $this->assertSame('GET', $this->captured['method']);
+        $this->assertStringContainsString('/TESTKEY/sms/send.json', $this->captured['url']);
+    }
+}