chore: update OpenAPI spec from monorepo (#295)

Co-authored-by: OpenRouter SDK Bot <sdk-bot@openrouter.ai>

.speakeasy/in.openapi.yaml

@@ -8025,6 +8025,13 @@ components:
               description: ISO 8601 timestamp of when the generation was created
               example: '2024-07-15T23:33:19.433273+00:00'
               type: string
+            data_region:
+              description: The data region this generation was routed through. 'europe' for EU-routed requests, 'global' otherwise.
+              enum:
+                - global
+                - europe
+              example: global
+              type: string
             external_user:
               description: External user identifier
               example: user-123
@@ -8253,6 +8260,7 @@ components:
             - provider_responses
             - user_agent
             - http_referer
+            - data_region
           type: object
       required:
         - data