Task: SIA Activation

The task-managed SIA activation flow consists of:

• task::enable_sia::init: Start activation, returns a task_id
• task::enable_sia::status: Poll activation progress and final result
• task::enable_sia::user_action: Provide user action when required (reserved for SIA)
• task::enable_sia::cancel: Cancel an ongoing activation

Refer to each subpage for arguments, responses, and examples.