fix: resolve 22 remaining issues - type exports, dead code, state mutations, orphaned components

src/components/game/index.ts

@@ -7,9 +7,6 @@ export { StatsTab } from './StatsTab';
 
 // UI components
 export { ActionButtons } from './ActionButtons';
-export { CalendarDisplay } from './CalendarDisplay';
-export { CraftingProgress } from './CraftingProgress';
-export { StudyProgress } from './StudyProgress';
 export { ManaDisplay } from './ManaDisplay';
 export { TimeDisplay } from './TimeDisplay';
 export { UpgradeDialog } from './UpgradeDialog';