Engine Update

This update ports some new engine features back to Priestess Breeder.

Features:

• Every turn in the engine is managed by an API call to generate narration while simultaneously managing other facets of the game state. This is executed with a structured multi-part query. I've recently learned that the Cohere API sorts the components of this query alphabetically, regardless of their API call ordering, which undermines chain-of-thought reasoning across the query steps. The query keys have been renamed alphabetically to avoid this problem, which should yield better decisions by the LLM.
• Added autosave functionality.
  
• The Submit button is now locked when no text is entered to avoid accidental turn executions.
• You cannot save while popups are open.