Parent Agent becomes a real surface

This release adds Parent Agent tab functionality and the related native UI needed to make parent-agent work visible inside Droid.

The orchestration layer also gets refreshed generated assets and improved task handling. The parent agent is no longer just lurking in the basement.

• Added Parent Agent tab UI components
• Updated parent-agent orchestration
• Improved the Parent Agent experience
• Updated generated parent-agent assets
• Bumped release build metadata