chore: update OpenAPI spec from monorepo (#373)

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

.speakeasy/in.openapi.yaml

@@ -24508,7 +24508,8 @@ paths:
       description: >-
         Create a new bring-your-own-key (BYOK) provider credential. The raw key is encrypted at rest and never returned
         in API responses. Defaults to the authenticated entity's default workspace; use the `workspace_id` body field to
-        scope to a different workspace. [Management key](/docs/guides/overview/auth/management-api-keys) required.
+        scope to a different workspace. Treat the raw key as write-only; it is never returned after creation.
+        [Management key](/docs/guides/overview/auth/management-api-keys) required.
       operationId: createBYOKKey
       requestBody:
         content:
@@ -27188,7 +27189,9 @@ paths:
         - Guardrails
       x-speakeasy-name-override: get
     patch:
-      description: Update an existing guardrail. [Management key](/docs/guides/overview/auth/management-api-keys) required.
+      description: >-
+        Update an existing guardrail. Collection fields use replace semantics: send the full desired set on every
+        update. [Management key](/docs/guides/overview/auth/management-api-keys) required.
       operationId: updateGuardrail
       parameters:
         - description: The unique identifier of the guardrail to update
@@ -27382,8 +27385,8 @@ paths:
         type: offsetLimit
     post:
       description: >-
-        Assign multiple API keys to a specific guardrail. [Management
-        key](/docs/guides/overview/auth/management-api-keys) required.
+        Assign multiple API keys to a specific guardrail. A key may hold at most one guardrail; assigning replaces any
+        existing assignment. [Management key](/docs/guides/overview/auth/management-api-keys) required.
       operationId: bulkAssignKeysToGuardrail
       parameters:
         - description: The unique identifier of the guardrail
@@ -28735,7 +28738,8 @@ paths:
       x-speakeasy-name-override: list
     post:
       description: >-
-        Create a new API key for the authenticated user. [Management
+        Create a new API key for the authenticated user. The plaintext `key` is returned only in this response. Treat it
+        as a write-only, sensitive value; it cannot be retrieved later. [Management
         key](/docs/guides/overview/auth/management-api-keys) required.
       operationId: createKeys
       requestBody:
@@ -33151,12 +33155,14 @@ paths:
       responses:
         '200':
           content:
-            application/octet-stream:
+            video/mp4:
               example: <binary video data>
               schema:
                 format: binary
                 type: string
-          description: Video content stream
+          description: >-
+            Video content stream. The body is the raw video bytes proxied from the upstream provider, and the
+            Content-Type reflects the provider media type (video/mp4).
         '400':
           content:
             application/json:
@@ -33445,7 +33451,7 @@ paths:
     delete:
       description: >-
         Delete an existing workspace. The default workspace cannot be deleted. Workspaces with active API keys cannot be
-        deleted. [Management key](/docs/guides/overview/auth/management-api-keys) required.
+        deleted; remove the keys first. [Management key](/docs/guides/overview/auth/management-api-keys) required.
       operationId: deleteWorkspace
       parameters:
         - description: The workspace ID (UUID) or slug