refactor(cursor-models): remove tier property from Cursor model configurations

- Removed the 'tier' property from Cursor model configurations and related UI components.
- Updated relevant files to reflect the removal of tier-related logic and display elements.
- This change simplifies the model structure and UI, focusing on essential attributes.

apps/server/src/providers/cursor-provider.ts

@@ -959,7 +959,6 @@ export class CursorProvider extends CliProvider {
       modelString: id,
       provider: 'cursor',
       description: config.description,
-      tier: config.tier === 'pro' ? ('premium' as const) : ('basic' as const),
       supportsTools: true,
       supportsVision: false,
     }));