feat: add Cursor usage quota tracking

Adds Cursor as a supported quota provider
Reads Cursor auth from env, token files, or local app data
Improves Cursor usage labels in the UI

packages/ui/src/lib/i18n/messages/ko.ts

@@ -2571,6 +2571,11 @@ export const dict: Record<I18nKey, string> = {
   'quota.window.monthly': 'Monthly Limit',
   'quota.window.credits': 'Credits',
   'quota.window.creditsBalance': 'Credits Balance',
+  'quota.window.billingCycle': 'Billing Cycle',
+  'quota.window.auto': 'Auto',
+  'quota.window.api': 'API',
+  'quota.window.planLimit': 'Plan Limit',
+  'quota.window.onDemand': 'On-demand',
   'quota.window.session': 'Session',
   'quota.window.premium': 'Premium Interactions',
   'quota.window.chat': 'Chat Requests',