Grouped related inputs into structured objects across the topic and subscription actions:

• Grouped Page Token and Page Size into a Pagination object on List Topics and List Subscriptions
• Grouped Push Endpoint, Attributes, and OIDC Token into a Push Configuration object on Update Push Config
• Added an Additional Fields object to Create Subscription, Update Subscription, Create Topic, and Update Topic

Updated spectral version

Added global debug support across all actions for improved troubleshooting

Added inline data sources for topics and subscriptions to enhance data selection capabilities