Clarify that ForbiddenError custom messages are not included in API responses

Author: ww24

docusaurus/docs/cms/error-handling.md

@@ -414,6 +414,10 @@ The `ForbiddenError` class is a specific error class used when a user either doe
 throw new errors.ForbiddenError('Ah ah ah, you didn\'t say the magic word');
 ```
 
+:::note
+The custom `message` passed to `ForbiddenError` is not included in the API response. Instead, the API returns the default message. If you need to return a custom error message indicating insufficient permissions, use [`PolicyError`](#policies) instead.
+:::
+
 </TabItem>
 
 <TabItem value="Unauthorized" label="Unauthorized">

docusaurus/static/llms-code.txt

@@ -22366,6 +22366,10 @@ File path: N/A
 
 ```
 
+:::note
+The custom `message` passed to `ForbiddenError` is not included in the API response. Instead, the API returns the default message. If you need to return a custom error message indicating insufficient permissions, use [`PolicyError`](#policies) instead.
+:::
+
 </TabItem>
 
 <TabItem value="Unauthorized" label="Unauthorized">

docusaurus/static/llms-full.txt

@@ -29697,6 +29697,10 @@ The `ForbiddenError` class is a specific error class used when a user either doe
 throw new errors.ForbiddenError('Ah ah ah, you didn\'t say the magic word');
 ```
 
+:::note
+The custom `message` passed to `ForbiddenError` is not included in the API response. Instead, the API returns the default message. If you need to return a custom error message indicating insufficient permissions, use [`PolicyError`](#policies) instead.
+:::
+
 The `UnauthorizedError` class is a specific error class used when a user doesn't have the proper role or permissions to perform a specific action, but has properly authenticated. It accepts the following parameters:
 
 | Parameter | Type | Description | Default |