chore: update OpenAPI spec [sdk-bot]

Author: OpenRouter SDK Bot

.speakeasy/in.openapi.yaml

@@ -27342,6 +27342,7 @@ paths:
       summary: 'List files'
       tags:
         - 'Files'
+      x-hidden: true
       x-speakeasy-name-override: 'list'
       x-speakeasy-pagination:
         inputs:
@@ -27457,6 +27458,7 @@ paths:
       summary: 'Upload a file'
       tags:
         - 'Files'
+      x-hidden: true
       x-speakeasy-name-override: 'upload'
   /files/{file_id}:
     delete:
@@ -27531,6 +27533,7 @@ paths:
       summary: 'Delete a file'
       tags:
         - 'Files'
+      x-hidden: true
       x-speakeasy-name-override: 'delete'
     get:
       description: 'Retrieves metadata for a single file owned by the requesting workspace.'
@@ -27609,6 +27612,7 @@ paths:
       summary: 'Get file metadata'
       tags:
         - 'Files'
+      x-hidden: true
       x-speakeasy-name-override: 'retrieve'
   /files/{file_id}/content:
     get:
@@ -27692,6 +27696,7 @@ paths:
       summary: 'Download file content'
       tags:
         - 'Files'
+      x-hidden: true
       x-speakeasy-name-override: 'download'
   /generation:
     get: