Retrieves a single program template by its unique identifier. Templates contain reusable program structures
including configuration, phases, tasks, and settings that can be applied to create new programs with
consistent workflows.

Key Features:

• Retrieves complete template definition including structure and settings
• Optionally includes associated tasks and subtask hierarchies
• Optionally includes page configurations and content associations
• Shows custom properties and their default values
• Returns manager ID and follower list
• Includes recurrence settings if configured for automated program generation
• Provides template metadata including creation and modification history

Authorization Logic:

1. User must have a valid JWT token with viewing or management scopes
2. User must have program update permissions
3. User must have permission to view templates in the space

Usage Example:

Retrieve a program template to preview its structure before applying it, or fetch template details
to display in a template selection UI for program creation.