Scene Stack Demo Mode Coordination

Problem

When implementing a demo/showcase mode that cycles through multiple scenes in a stack-based scene manager, child scenes that directly push their successor (instead of popping back to the orchestrator) cause infinite loops or scene repetition.

Context / Trigger Conditions

• Demo mode gets stuck on one scene, repeatedly showing/screenshotting it
• Orchestrator scene's on_resume() never gets called
• Scene progression works manually but fails in automated demo mode
• Log shows scenes being pushed but orchestrator never advances
• Stack grows unboundedly: Orchestrator → Scene1 → Scene2 → Scene3...

Solution