feat: refactor turn processing and world state management; remove obsolete files and enhance database interactions

Co-authored-by: Copilot <copilot@github.com>

charactergarden/app/src/defaultRulebook.ts

@@ -4,7 +4,7 @@ export const DEFAULT_RULEBOOK_ID = "rulebook_default";
 
 /**
  * Builds the default SceneRulebook, encoding all validation logic that was
- * previously hardcoded in truthEngine.ts as editable, data-driven rules.
+ * previously hardcoded in the truth engine as editable, data-driven rules.
  */
 export function createDefaultRulebook(worldId: string): SceneRulebook {
   const now = Date.now();