minor #666 Import FQCNs in examples instead of using inline class names (OskarStark)

This PR was merged into the main branch.

Discussion
----------

 Import FQCNs in examples instead of using inline class names

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| Docs?         | no
| Issues        | --
| License       | MIT

Commits
-------

2c65b97 Import FQCNs in examples instead of using inline class names

Author: OskarStark

examples/rag/chromadb.php

@@ -9,6 +9,7 @@
  * file that was distributed with this source code.
  */
 
+use Codewithkyrian\ChromaDB\Factory;
 use Symfony\AI\Agent\Agent;
 use Symfony\AI\Agent\Toolbox\AgentProcessor;
 use Symfony\AI\Agent\Toolbox\Tool\SimilaritySearch;
@@ -32,7 +33,7 @@
 // initialize the store
 
 $store = new Store(
-    (new Codewithkyrian\ChromaDB\Factory())
+    (new Factory())
         ->withHost(env('CHROMADB_HOST'))
         ->withPort((int) env('CHROMADB_PORT'))
         ->connect(),

examples/vertexai/token-metadata.php

@@ -12,6 +12,7 @@
 use Symfony\AI\Agent\Agent;
 use Symfony\AI\Platform\Bridge\VertexAi\Gemini\Model;
 use Symfony\AI\Platform\Bridge\VertexAi\PlatformFactory;
+use Symfony\AI\Platform\Bridge\VertexAi\TokenOutputProcessor;
 use Symfony\AI\Platform\Message\Message;
 use Symfony\AI\Platform\Message\MessageBag;
 
@@ -20,7 +21,7 @@
 $platform = PlatformFactory::create(env('GOOGLE_CLOUD_LOCATION'), env('GOOGLE_CLOUD_PROJECT'), adc_aware_http_client());
 $model = new Model(Model::GEMINI_2_0_FLASH_LITE);
 
-$agent = new Agent($platform, $model, outputProcessors: [new Symfony\AI\Platform\Bridge\VertexAi\TokenOutputProcessor()], logger: logger());
+$agent = new Agent($platform, $model, outputProcessors: [new TokenOutputProcessor()], logger: logger());
 $messages = new MessageBag(
     Message::forSystem('You are an expert assistant in animal study.'),
     Message::ofUser('What does a cat usually eat?'),