Update a program template

Updates an existing program template with new data. Performs a complete replacement of the template
structure, settings, and configuration. The updated template will be used for any future program
creations but does not affect programs already created from this template.

Key Features:

• Updates complete template structure and settings
• Modifies title, description, and manager assignments
• Updates planned dates and duration
• Changes custom properties and their values
• Updates recurrence settings for automated program generation
• Does not affect existing programs created from this template
• Associations cannot be modified during template updates

Authorization Logic:

1. User must have a valid JWT token with management scopes
2. User must have program update permissions
3. User must have permission to update the specific template
4. Manager ID must be valid if specified

Usage Example:

Update a program template to reflect changes in standard workflows, adjust default settings
for future program creations, or modify recurrence patterns for automated program generation.