Fix code formatting with black

Applied black formatting to all cost monitoring files to ensure consistent code style.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: jeremymanning

clustrix/cost_monitoring.py

@@ -379,4 +379,3 @@ def get_pricing_info(provider: str) -> Optional[Dict[str, float]]:
     if monitor:
         return monitor.get_pricing_info()
     return None
-

clustrix/cost_providers/aws.py

@@ -306,4 +306,3 @@ def _calculate_cost_optimization_score(self) -> float:
         # - Reserved instance coverage
         # For now, return a placeholder
         return 75.0
-

clustrix/cost_providers/azure.py

@@ -339,4 +339,3 @@ def _calculate_cost_optimization_score(self) -> float:
         # - Auto-shutdown configurations
         # For now, return a placeholder
         return 72.0
-

clustrix/cost_providers/gcp.py

@@ -366,4 +366,3 @@ def _calculate_cost_optimization_score(self) -> float:
         # - Committed use discount opportunities
         # For now, return a placeholder
         return 78.0
-

clustrix/cost_providers/lambda_cloud.py

@@ -255,4 +255,3 @@ def estimate_monthly_cost(
             "monthly_cost_24x7": hourly_rate * 24 * 30,  # 24/7 usage
             "instance_type": instance_type,
         }
-