fix(request-schema): suppress ExampleFromSchema when explicit example/examples present

When a MediaTypeObject has an explicit `example` or `examples`, both
ExampleFromSchema and ResponseExample/ResponseExamples would render —
showing duplicate tabs with identical content since sampleResponseFromSchema
picks up schema.example. Suppress ExampleFromSchema when an explicit
media-level example is already provided.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: sserrata

packages/docusaurus-theme-openapi-docs/src/theme/RequestSchema/index.tsx

@@ -117,6 +117,8 @@ const RequestSchemaComponent: React.FC<Props> = ({ title, body, style }) => {
                   </div>
                 </TabItem>
                 {firstBody &&
+                  !requestExample &&
+                  !requestExamples &&
                   ExampleFromSchema({
                     schema: firstBody,
                     mimeType: mimeType,
@@ -202,6 +204,8 @@ const RequestSchemaComponent: React.FC<Props> = ({ title, body, style }) => {
             </Details>
           </TabItem>
           {firstBody &&
+            !requestExample &&
+            !requestExamples &&
             ExampleFromSchema({
               schema: firstBody,
               mimeType: randomFirstKey,