feat(platform): Add support for Google vertex AI

- Adds AI bundle integration

Author: junaidbinfarooq

src/ai-bundle/config/options.php

@@ -51,6 +51,12 @@
                             ->scalarNode('api_key')->isRequired()->end()
                         ->end()
                     ->end()
+                    ->arrayNode('vertexai')
+                        ->children()
+                            ->scalarNode('location')->isRequired()->end()
+                            ->scalarNode('project_id')->isRequired()->end()
+                        ->end()
+                    ->end()
                     ->arrayNode('openai')
                         ->children()
                             ->scalarNode('api_key')->isRequired()->end()

src/ai-bundle/config/services.php

@@ -28,6 +28,7 @@
 use Symfony\AI\Platform\Bridge\Gemini\Contract\GeminiContract;
 use Symfony\AI\Platform\Bridge\Ollama\Contract\OllamaContract;
 use Symfony\AI\Platform\Bridge\OpenAi\Whisper\AudioNormalizer;
+use Symfony\AI\Platform\Bridge\VertexAi\Contract\GeminiContract as VertexAiGeminiContract;
 use Symfony\AI\Platform\Contract;
 use Symfony\AI\Platform\Contract\JsonSchema\DescriptionParser;
 use Symfony\AI\Platform\Contract\JsonSchema\Factory as SchemaFactory;
@@ -45,6 +46,8 @@
             ->factory([AnthropicContract::class, 'create'])
         ->set('ai.platform.contract.google', Contract::class)
             ->factory([GeminiContract::class, 'create'])
+        ->set('ai.platform.contract.vertexai.gemini', Contract::class)
+            ->factory([VertexAiGeminiContract::class, 'create'])
         ->set('ai.platform.contract.ollama', Contract::class)
             ->factory([OllamaContract::class, 'create'])
         // structured output