feat(openai): add support for store parameter

docs/providers/openai.md

@@ -200,6 +200,18 @@ $response = Prism::text()
     ->asText();
 ```
 
+#### Store
+
+```php
+$response = Prism::text()
+    ->using('openai', 'gpt-5')
+    ->withPrompt('Give me a summary of the following legal document')
+    ->withProviderOptions([ // [!code focus]
+        'store' => false // true, false // [!code focus]
+    ]) // [!code focus]
+    ->asText();
+```
+
 ## Streaming
 
 OpenAI supports streaming responses in real-time. All the standard streaming methods work with OpenAI models:

src/Providers/OpenAI/Handlers/Structured.php

@@ -204,6 +204,7 @@ protected function sendRequest(Request $request, array $responseFormat): ClientR
                 'service_tier' => $request->providerOptions('service_tier'),
                 'truncation' => $request->providerOptions('truncation'),
                 'reasoning' => $request->providerOptions('reasoning'),
+                'store' => $request->providerOptions('store'),
                 'text' => [
                     'format' => $responseFormat,
                 ],

src/Providers/OpenAI/Handlers/Text.php

@@ -144,6 +144,7 @@ protected function sendRequest(Request $request): ClientResponse
                 ] : null,
                 'truncation' => $request->providerOptions('truncation'),
                 'reasoning' => $request->providerOptions('reasoning'),
+                'store' => $request->providerOptions('store'),
             ]))
         );
     }

tests/Providers/OpenAI/StructuredTest.php

@@ -580,3 +580,38 @@
     expect($response->structured)->toBeArray();
     expect($response->structured)->toHaveKeys(['name', 'flexible_value']);
 });
+
+it('passes store parameter when specified', function (): void {
+    FixtureResponse::fakeResponseSequence(
+        'v1/responses',
+        'openai/structured-structured-mode'
+    );
+
+    $schema = new ObjectSchema(
+        'output',
+        'the output object',
+        [
+            new StringSchema('query', 'Search internal documents'),
+        ],
+        ['query']
+    );
+
+    $store = false;
+
+    Prism::structured()
+        ->using(Provider::OpenAI, 'gpt-4o')
+        ->withSchema($schema)
+        ->withPrompt('What was the revenue in Q3?')
+        ->withProviderOptions([
+            'store' => $store,
+        ])
+        ->asStructured();
+
+    Http::assertSent(function (Request $request) use ($store): true {
+        $body = json_decode($request->body(), true);
+
+        expect(data_get($body, 'store'))->toBe($store);
+
+        return true;
+    });
+});

tests/Providers/OpenAI/TextTest.php

@@ -741,3 +741,28 @@
         expect($responseTwo->text)->toContain('Metcheck');
     });
 });
+
+it('passes store parameter when specified', function (): void {
+    FixtureResponse::fakeResponseSequence(
+        'v1/responses',
+        'openai/generate-text-with-a-prompt'
+    );
+
+    $store = false;
+
+    Prism::text()
+        ->using(Provider::OpenAI, 'gpt-4o')
+        ->withPrompt('Give me TLDR of this legal document')
+        ->withProviderOptions([
+            'store' => $store,
+        ])
+        ->asText();
+
+    Http::assertSent(function (Request $request) use ($store): true {
+        $body = json_decode($request->body(), true);
+
+        expect(data_get($body, 'store'))->toBe($store);
+
+        return true;
+    });
+});