refactor(fer-19) : url de base unique pour le pont-bascule

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/Service/PontBasculeServiceTest.php

@@ -47,7 +47,7 @@ final class PontBasculeServiceTest extends TestCase
         $httpClient
             ->expects(self::once())
             ->method('request')
-            ->with('POST', 'http://example.test')
+            ->with('POST', 'http://example.test/send/dsd')
             ->willReturn($response)
         ;