fina autoamtiona adn billing and credits

backend/igny8_core/ai/functions/auto_cluster.py

@@ -40,6 +40,7 @@ class AutoClusterFunction(BaseAIFunction):
     def validate(self, payload: dict, account=None) -> Dict:
         """Custom validation for clustering"""
         from igny8_core.ai.validators import validate_ids, validate_keywords_exist
+        from igny8_core.ai.validators.cluster_validators import validate_minimum_keywords
         
         # Base validation (no max_items limit)
         result = validate_ids(payload, max_items=None)
@@ -52,6 +53,21 @@ class AutoClusterFunction(BaseAIFunction):
         if not keywords_result['valid']:
             return keywords_result
         
+        # NEW: Validate minimum keywords (5 required for meaningful clustering)
+        min_validation = validate_minimum_keywords(
+            keyword_ids=ids,
+            account=account,
+            min_required=5
+        )
+        
+        if not min_validation['valid']:
+            logger.warning(f"[AutoCluster] Validation failed: {min_validation['error']}")
+            return min_validation
+        
+        logger.info(
+            f"[AutoCluster] Validation passed: {min_validation['count']} keywords available (min: {min_validation['required']})"
+        )
+        
         # Removed plan limits check
         
         return {'valid': True}