chore: update OpenAPI spec from monorepo (#795)

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

Author: openrouter-docs-sync[bot]

.speakeasy/in.openapi.yaml

@@ -32484,12 +32484,14 @@ paths:
           results: '$.data'
         type: 'offsetLimit'
     post:
-      description: 'Create a new guardrail for the authenticated user. A newly created guardrail enforces nothing until it is assigned to API keys or organization members; `workspace_id` places the guardrail in a workspace but does not apply it to that workspace''s traffic. To restrict all traffic in a workspace, update the workspace''s default guardrail instead. [Management key](/docs/guides/overview/auth/management-api-keys) required.'
+      description: 'Create a new guardrail for the authenticated user. A newly created guardrail enforces nothing until it is assigned to API keys or organization members; `workspace_id` places the guardrail in a workspace but does not apply it to that workspace''s traffic. To restrict all traffic in a workspace, update the workspace''s default guardrail instead. Set `allowed_data_regions` to enforce [In-Region Routing](/docs/guides/features/in-region-routing#enforcing-in-region-routing-with-guardrails): governed requests must arrive through one of the listed OpenRouter domains and are rejected with a 403 otherwise. [Management key](/docs/guides/overview/auth/management-api-keys) required.'
       operationId: 'createGuardrail'
       requestBody:
         content:
           application/json:
             example:
+              allowed_data_regions:
+                - 'europe'
               allowed_models: null
               allowed_providers:
                 - 'openai'