[OpenRouter] Move tests to Bridge/OpenRouter/Tests namespace

Move tests from src/platform/tests/Bridge/OpenRouter/ to
src/platform/src/Bridge/OpenRouter/Tests/ to follow the same
pattern as other bridge packages.

Author: OskarStark

…ridge/OpenRouter/ModelApiCatalogTest.php …OpenRouter/Tests/ModelApiCatalogTest.phpsrc/platform/tests/Bridge/OpenRouter/ModelApiCatalogTest.php renamed to src/platform/src/Bridge/OpenRouter/Tests/ModelApiCatalogTest.php src/platform/tests/Bridge/OpenRouter/ModelApiCatalogTest.php renamed to src/platform/src/Bridge/OpenRouter/Tests/ModelApiCatalogTest.php

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\AI\Platform\Tests\Bridge\OpenRouter;
+namespace Symfony\AI\Platform\Bridge\OpenRouter\Tests;
 
 use PHPUnit\Framework\TestCase;
 use Symfony\AI\Platform\Bridge\Generic\CompletionsModel;

…s/Bridge/OpenRouter/ModelCatalogTest.php …ge/OpenRouter/Tests/ModelCatalogTest.phpsrc/platform/tests/Bridge/OpenRouter/ModelCatalogTest.php renamed to src/platform/src/Bridge/OpenRouter/Tests/ModelCatalogTest.php src/platform/tests/Bridge/OpenRouter/ModelCatalogTest.php renamed to src/platform/src/Bridge/OpenRouter/Tests/ModelCatalogTest.php

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\AI\Platform\Tests\Bridge\OpenRouter;
+namespace Symfony\AI\Platform\Bridge\OpenRouter\Tests;
 
 use PHPUnit\Framework\Attributes\DataProvider;
 use Symfony\AI\Platform\Bridge\Generic\CompletionsModel;

…ridge/OpenRouter/PlatformFactoryTest.php …OpenRouter/Tests/PlatformFactoryTest.phpsrc/platform/tests/Bridge/OpenRouter/PlatformFactoryTest.php renamed to src/platform/src/Bridge/OpenRouter/Tests/PlatformFactoryTest.php src/platform/tests/Bridge/OpenRouter/PlatformFactoryTest.php renamed to src/platform/src/Bridge/OpenRouter/Tests/PlatformFactoryTest.php

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\AI\Platform\Tests\Bridge\OpenRouter;
+namespace Symfony\AI\Platform\Bridge\OpenRouter\Tests;
 
 use PHPUnit\Framework\TestCase;
 use Symfony\AI\Platform\Bridge\OpenRouter\PlatformFactory;