feat: add Usage Limits Panel component with usage tracking and visual indicators for limits

style: implement custom color schemes and gradients for account section, enhancing visual hierarchy

backend/igny8_core/business/content/services/content_generation_service.py

@@ -30,12 +30,20 @@ class ContentGenerationService:
         Raises:
             InsufficientCreditsError: If account doesn't have enough credits
         """
+        from igny8_core.business.billing.services.limit_service import LimitService, MonthlyLimitExceededError
+        
         # Get tasks
         tasks = Tasks.objects.filter(id__in=task_ids, account=account)
         
         # Calculate estimated credits needed based on word count
         total_word_count = sum(task.word_count or 1000 for task in tasks)
         
+        # Check monthly word count limit
+        try:
+            LimitService.check_monthly_limit(account, 'content_words', amount=total_word_count)
+        except MonthlyLimitExceededError as e:
+            raise InsufficientCreditsError(str(e))
+        
         # Check credits
         try:
             self.credit_service.check_credits(account, 'content_generation', total_word_count)