chore: update OpenAPI spec from monorepo (#776)

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

Author: openrouter-docs-sync[bot]

.speakeasy/in.openapi.yaml

@@ -1196,17 +1196,45 @@ components:
       example:
         expires_at: '2026-04-08T00:00:00Z'
         id: 'ctr_01abc'
+        skills: null
       properties:
         expires_at:
           type: 'string'
         id:
           type: 'string'
+        skills:
+          default: null
+          items:
+            $ref: '#/components/schemas/AnthropicContainerSkill'
+          type:
+            - 'array'
+            - 'null'
       required:
         - 'id'
         - 'expires_at'
       type:
         - 'object'
         - 'null'
+    AnthropicContainerSkill:
+      example:
+        skill_id: 'pdf'
+        type: 'anthropic'
+        version: 'latest'
+      properties:
+        skill_id:
+          type: 'string'
+        type:
+          enum:
+            - 'anthropic'
+            - 'custom'
+          type: 'string'
+        version:
+          type: 'string'
+      required:
+        - 'skill_id'
+        - 'type'
+        - 'version'
+      type: 'object'
     AnthropicContainerUpload:
       example:
         file_id: 'file_01abc'
@@ -1820,6 +1848,7 @@ components:
     AnthropicSystemClearAt:
       enum:
         - 'next_user_message'
+        - 'never'
         - null
       example: 'next_user_message'
       type:
@@ -2104,10 +2133,12 @@ components:
       properties:
         prefix_mismatch_behavior:
           enum:
+            - 'error'
             - 'drop_block'
-          type: 'string'
-      required:
-        - 'prefix_mismatch_behavior'
+            - null
+          type:
+            - 'string'
+            - 'null'
       type:
         - 'object'
         - 'null'