Search Records tab not visible in console when AgentCore Registry created with CUSTOM_JWT authorizer

## Summary
Briefly describe the problem or the help you need.

```
When creating an AgentCore registry with authorizerType: CUSTOM_JWT, the Search Records tab does not appear in the AWS console. The same registry
created with AWS_IAM shows both Managed Records and Search Records tabs.
```

## Details
Provide more details about your issue, including steps you’ve tried and what didn’t work.

```
- Created registry via boto3 SDK using authorizerType: "CUSTOM_JWT" with valid authorizerConfiguration (OIDC discovery URL + custom claims)
- The same JWT discovery URL and tenant ID work correctly for runtime and gateway auth
- Registry status shows as ACTIVE
- Console only displays the "Managed Records" tab
- When creating with authorizerType: "AWS_IAM", both "Managed Records" and "Search Records" tabs appear immediately
```

## Expected Behavior
What outcome were you hoping for?

```
Search Records tab should be visible in the console for registries created with CUSTOM_JWT authorizer, same as with AWS_IAM.
```

## Additional Context
Add any other information, screenshots, logs, or references that could help.
```
Bedrock AgentCore Full access is provided to the user and region us-east-1
```